Add post-commit hook for svn.
user
```ruby
#!/usr/bin/ruby
require 'rubygems'
require 'time'
require 'net/http'
require 'json'


# You will need to change the following two lines
########################
jobsworth_url = "http://demo.getjobsworth.org"
key ="1fbb4b951f5f"
########################

receiver = jobsworth_url + "/api/scm/json/" + key


svnlook = "/usr/bin/svnlook"

if ARGV.size<2
  puts "Usage: post_commit.rb REPO REV"
  return 0
end
repository= ARGV[0]
revision= ARGV[1]
commit={ }
commit[:revision] = revision
commit[:message] = `#{svnlook} log #{repository} -r #{revision}`.strip
commit[:author] = `#{svnlook} author #{repository} -r #{revision}`.strip
commit[:timestamp] = Time.parse(`#{svnlook} date #{repository} -r #{revision}`.strip).to_i
changed = `#{svnlook} changed #{repository} -r #{revision}`.split(/\n/).collect{ |line| line.split(' ')}
commit[:path_count]=changed.size
commit[:modified]=[]
commit[:added]=[]
commit[:removed]=[]
changed.each do |line|
  case line[0]
    when 'A' then commit[:added]<< line[-1]
    when 'D' then commit[:removed]<< line[-1]
    when 'U' then commit[:modified]<< line[-1]
    else puts "Unrecognized change type #{line[0]} for file #{line[1]}"
  end
end

Net::HTTP.post_form(URI.parse(receiver), "payload" =>  { :revisions=>[commit] }.to_json )
```
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