Update src/Portable.Licensing/Validation/LicenseValidationExtensions.cs
Add icons
Rename .txt file to .md
Update project url
Update FAKE to 2.1.145
Add Xamarin's package manager tool
track renaming of the license file
Add a Getting started document
Merge remote-tracking branch 'sven-s/patch-2' into devel

Fixed issue #133
Added xpkg packaging build target

fixes #132
Cleandir task didn't work
Update to FAKE 2.1.147

Fixes xpkg task, refs #132
Bump version
Add getting started docs to solution
Merge branch 'devel'

Conflicts:
	src/Portable.Licensing.sln