Merge pull request #4 from RyanGano/master

msysgit URL changed to reflect new location
Adding newer default install paths for Git.

Version Git-1.8.5.2 of Git installs into %localappdata%\Programs\Git\bin\git.exe
Version 1.9.0 of msysgit installs into C:\msysgit\bin\git.exe
Migrate to Automatic Package Restore.

See https://docs.nuget.org/docs/workflows/migrating-to-automatic-package-restore.
Update libgit2sharp.
Add support for closing the app with Escape key
Merge pull request #6 from RyanGano/EscapeToExit

Add support for closing the app with Escape key
v0.2.7 Add Esc to close, new git paths.