add Live Preview category
move all LiveDevelopment tests
Fix for issue #7458: View doesn't scroll down after Edit > Move Line Down
Added ClojureScript and cljx extensions to clojure fileExtensions

[ClojureScript](https://github.com/clojure/clojurescript/) is a Clojure implementation targeting JavaScript. [cljx](https://github.com/lynaghk/cljx) helps write Clojure/ClojureScript portable projects.
Both are very common and should probably be recognized out-of-the-box by Brackets.
Simplify solution to only scroll to primary selection
prevent navbar wrapping
Merge pull request #7758 from adobe/randy/specrunner-category-update

Add Live Preview category to SpecRunner
Merge pull request #7854 from jeluard/patch-1

Added ClojureScript and cljx extensions to clojure fileExtensions
Merge pull request #7829 from adobe/lkcampbell/issue-7458

View doesn't scroll down after Edit > Move Line Down