Set version to '2.6'

Build 2.6-rc.2

Fill out the Features doc page

Use rolling build instead of CI

Merge pull request #96 from bdovaz/remove-dependencies

Remove dependencies

Fix package deployment

Ship stable version

Merge pull request #40 from scottdorman/master

Refresh repo build authoring and sync with microsoft/vs-validation

Merge pull request #29 from AndreiCsibi-msft/NotDefaultOnStructs

Adding NotDefault method to check structs values against default values.

Remove package dependencies

Fixes #25