Markdown: Relative paths in preview. (#1028)
Project: Don't build bundles on load. (#1029)
Mef: Filter nulls. (#879)
Merge pull request #1030 from am11/master

Markdown: Relative paths in preview (#1028)
Fixes bug with sprite name collision

If the sprite name is the same name as any of the files in the sprite, then the sprite creation will fail.

This fix checks for this for Sprites and Bundles to prevent collisions.
Merge pull request #1027 from jlestein/master

Sprite: Name collision bug
CSS: Retires "Dont Over Qualify Selectors".(#767)
Code: Remove unused 'using'.
Merge pull request #1035 from am11/master

CSS: Retires "Dont Over Qualify Selectors" (#767)
Bumped assembly version to 2.1
Updated NuGet packages, added update enforcer
Updated description
CoffeeScript: Deletes existing map file.
Rescues from throwing IOException.
Merge pull request #1036 from am11/master

CoffeeScript: Deletes existing map file