message: Update issue template to be less specific and bitcoin->qtum
diff: <!--- Remove sections that do not apply -->
  -This issue tracker is only for technical issues related to bitcoin-core.
  -
  -General bitcoin questions and/or support requests and are best directed to the [Bitcoin StackExchange](https://bitcoin.stackexchange.com).
  -
  -For reporting security issues, please read instructions at [https://bitcoincore.org/en/contact/](https://bitcoincore.org/en/contact/).
  +This issue tracker is only for technical issues related to Qtum.
  ### Describe the issue
  @@ -23,15 +19,14 @@ Tell us what happens instead
  ### Screenshots.
  If the issue is related to the GUI, screenshots can be added to this issue via drag & drop.
  -### What version of bitcoin-core are you using?
  -List the version number/commit ID, and if it is an official binary, self compiled or a distribution package such as PPA.
  +### What version of Qtum are you using?
  +List the version number/commit ID
  ### Machine specs:
  - OS:
  - CPU:
  - RAM:
  - Disk size:
  -- Disk Type (HD/SDD):
  ### Any extra information that might be useful in the debugging process.
  This is normally the contents of a `debug.log` or `config.log` file. Raw text or a link to a pastebin type site are preferred.
  