Use version 1.8 of ruby for bundle items

10.7 and 10.8 only include ruby 1.8, so all bundle items have been written to work with that. Optionally supporting ruby 1.9 and 2.0 is problematic as these versions are not fully backwards compatible.

#ignore
Re-add ‘issue’ as a new scheme

A recommit of 10fb149, fixes #4. Original commit message:

I am not aware of any precedent for this, but I wish to make it easy to reference issues in the code base without giving a full URL to the issue tracker. With project specific variables we can place the URL (prefix/template) in a project variable and magically have all the issue:// links (for that project) work.
Do not base64-obsfucate email addresses in links
Use selected text for URL (instead of clipboard content)
Do not fetch title from URL for HTTP links.
Define URL as tab stop (for HTML and Markdown)
Make “Wrap Selection as Link” available in all scopes.

Because it is also useful in comments, strings, ...
Use HTML link template as default for all scopes (unless overridden by more specific scope like Markdown, ...)