title: Sublime Text 3 - Package Control : "No packages available for installation" error when trying to install packages through secure channel
body: <p>I am running Sublime on Ubuntu 14.04 LTS 64-bit. I have tried installing Package Installer on Sublime Text 3 using both the simple script and manual installation methods.</p>
  
  <p>Whenever I try to run the Install Package option I get an error message "There are no packages available for installation"</p>
  
  <p>The console shows the following trace:</p>
  
  <pre><code>Package Control: Error downloading channel. b'curl: (77) error setting certificate verify locations:\n  CAfile: /usr/lib/ssl/certs/ca-certificates.crt\n  CApath: /etc/ssl/certs' downloading https://sublime.wbond.net/channel.json.
  error: Package Control
  There are no packages available for installation
  </code></pre>
  
  <p>If I add <code>http://sublime.wbond.net/repositories.json</code> as a channel, install package starts showing the package list. But, when I try to install a package (e.g. Pretty JSON) I again get an error related to the security certificate with the following console trace:</p>
  
  <pre><code>reloading Packages/User/Preferences.sublime-settings
  found 1 files for base name Default.sublime-theme
  Package Control: Error downloading package. b'curl: (77) error setting certificate verify locations:\n  CAfile: /usr/lib/ssl/certs/ca-certificates.crt\n  CApath: /etc/ssl/certs' downloading https://codeload.github.com/dzhibas/SublimePrettyJson/zip/master.
  error: Package Control
  
  Unable to download Pretty JSON. Please view the console for more details.
  theme loaded
  ignored packages updated to: [Vintage]
  found 1 files for base name Default.sublime-theme
  theme loaded
  reloading Packages/User/Preferences.sublime-settings
  found 1 files for base name Default.sublime-theme
  theme loaded
  </code></pre>
  
  <p>Any suggestions to get Package Control to work with the secure channel are welcome. </p>
  
  <p><strong>ADDITIONAL DEBUG TRACE FOR PACKAGE CONTROL:</strong></p>
  
  <p>Upon enabling <code>debug</code> for <em>Package Control</em> I get the following trace:</p>
  
  <pre><code>Package Control: Fetching list of available packages
    Platform: linux-x64
    Sublime Text Version: 3059
    Package Control Version: 2.0.0
  Package Control: Download Debug
    URL: https://sublime.wbond.net/channel.json
    Resolved IP: 50.116.34.243
    Timeout: 30
  Package Control: Found system CA bundle at /usr/lib/ssl/certs/ca-certificates.crt
  Package Control: Curl Debug Proxy
    http_proxy: 
    https_proxy: 
    proxy_username: 
    proxy_password: 
  Package Control: Trying to execute command /usr/bin/curl --user-agent 'Sublime Package Control     v2.0.0' --connect-timeout 30 -sSL --compressed --dump-header /tmp/tmp_i20fq --cacert     /usr/lib/ssl/certs/ca-certificates.crt -v https://sublime.wbond.net/channel.json
  Package Control: Curl HTTP Debug General
    Hostname was NOT found in DNS cache
      Trying 50.116.34.243...
    Connected to sublime.wbond.net (50.116.34.243) port 443 (#0)
    error setting certificate verify locations:
      CAfile: /usr/lib/ssl/certs/ca-certificates.crt
      CApath: /etc/ssl/certs
    Closing connection 0
      CAfile: /usr/lib/ssl/certs/ca-certificates.crt
      CApath: /etc/ssl/certs
  Package Control: Error downloading channel. curl: (77) error setting certificate verify locations: downloading https://sublime.wbond.net/channel.json.
  ignored packages updated to: [Vintage, Pretty JSON]
  found 1 files for base name Default.sublime-theme
  Package Control: Fetching list of available packages
    Platform: linux-x64
    Sublime Text Version: 3059
    Package Control Version: 2.0.0
  theme loaded
  Package Control: Download Debug
    URL: https://sublime.wbond.net/channel.json
    Resolved IP: 50.116.34.243
    Timeout: 30
  Package Control: Found system CA bundle at /usr/lib/ssl/certs/ca-certificates.crt
  Package Control: Curl Debug Proxy
    http_proxy: 
    https_proxy: 
    proxy_username: 
    proxy_password: 
  Package Control: Trying to execute command /usr/bin/curl --user-agent 'Sublime Package Control     v2.0.0' --connect-timeout 30 -sSL --compressed --dump-header /tmp/tmpcg0ent --cacert     /usr/lib/ssl/certs/ca-certificates.crt -v https://sublime.wbond.net/channel.json
  Package Control: Curl HTTP Debug General
    Hostname was NOT found in DNS cache
      Trying 50.116.34.243...
    Connected to sublime.wbond.net (50.116.34.243) port 443 (#0)
    error setting certificate verify locations:
      CAfile: /usr/lib/ssl/certs/ca-certificates.crt
      CApath: /etc/ssl/certs
    Closing connection 0
      CAfile: /usr/lib/ssl/certs/ca-certificates.crt
      CApath: /etc/ssl/certs
  Package Control: Error downloading channel. curl: (77) error setting certificate verify locations:    downloading https://sublime.wbond.net/channel.json.
  Package Control: Unable to find a sublime-package file for Pretty JSON
  Package Control: Unable to find file package-metadata.json in the package Pretty JSON
  Package Control: Download Debug
    URL: https://codeload.github.com/dzhibas/SublimePrettyJson/zip/master
    Resolved IP: 192.30.252.146
    Timeout: 30
  Package Control: Found system CA bundle at /usr/lib/ssl/certs/ca-certificates.crt
  Package Control: Curl Debug Proxy
    http_proxy: 
    https_proxy: 
    proxy_username: 
    proxy_password: 
  Package Control: Trying to execute command /usr/bin/curl --user-agent 'Sublime Package Control     v2.0.0' --connect-timeout 30 -sSL --compressed --dump-header /tmp/tmpueshe5 --cacert   /usr/lib/ssl/certs/ca-certificates.crt -v https://codeload.github.com/dzhibas/SublimePrettyJson/zip/master
  reloading Packages/User/Preferences.sublime-settings
  found 1 files for base name Default.sublime-theme
  Package Control: Curl HTTP Debug General
    Hostname was NOT found in DNS cache
      Trying 192.30.252.147...
    Connected to codeload.github.com (192.30.252.147) port 443 (#0)
    error setting certificate verify locations:
      CAfile: /usr/lib/ssl/certs/ca-certificates.crt
      CApath: /etc/ssl/certs
    Closing connection 0
      CAfile: /usr/lib/ssl/certs/ca-certificates.crt
      CApath: /etc/ssl/certs
  Package Control: Error downloading package. curl: (77) error setting certificate verify locations:     downloading https://codeload.github.com/dzhibas/SublimePrettyJson/zip/master.
  error: Package Control
  
  Unable to download Pretty JSON. Please view the console for more details.
  </code></pre>