Merge pull request #59 from vosen/master

More work on a project system
Prepare vsix manifest for changes in the installer
Emit vsix manifests and stop running code analysis
Include vs extension files in the installer
Remove all references from templates-only project
Install vs2013 extension in the right directory
Added link to how to contribute

See PistonDevelopers/piston#715
Merge pull request #60 from leonkunert/master

Added link to how to contribute
Add Java requirement to Readme
Remove unused guids
Rework how templates are included in the VisualRust project
Merge pull request #61 from stepik777/master

Add Java requirement to Readme
Stop including .vsix in the installer
Change VisualRust project file to improve compatibility with AppVeyor
Fix some issues with guid generation
Add templates to the setup project and update wording in the installer
Fix botched rename in the latest commit and make feature selections in the installer slightly more resilient
Merge pull request #63 from vosen/installer-rework

Rework the installer
Update license in the installer