adding instructions on how to install nuget for monoDevelop
Merge pull request #1702 from fraga/updateMonoNuGetInstructions

adding instructions on how to install nuget for monoDevelop
ImageIndex -1 crash fixed. Closes #1688
failsafe script to force nuget packages to download in case xbuild won't update. Updating README on mono + nuget
adding packages.config to GitExtensions.Mono, now NBug is part of Nuget
Merge pull request #1709 from fraga/fixMonoProject

adding packages.config to GitExtensions.Mono, now NBug is part of Nuget
Merge pull request #1708 from fraga/NugetMono

Adding script to manually update nuget, updating README
WiX, git-rev-parse links updated
git2.dll added to plugins excluded files
File history in FormCommit fixed
Method RunGitCmdAsync() renamed to ReadGitOutputLines() and RunGitCmdAndNotWait()
Add support for MEF in GitModule. Update build server integration to use MEF to import adapters and settings UI controls.
Merge remote-tracking branch 'gitextensions/master' into BuildServerIntegration