Set "show active line" option to be false by default.
Commented out active line unit tests since the change to the default is meant to be temporary.
Rename the three menu items and move the longest one "Highlight Active Line" above the other two that are on by default.
Merge remote-tracking branch 'origin' into rlim/active-line-default

Conflicts:
	src/editor/Editor.js
Flip the logic in active-line unit tests to match the default being off.
Merge branch 'rlim/active-line-default' of https://github.com/adobe/brackets into rlim/active-line-default
Merge pull request #3215 from adobe/rlim/active-line-default

Set "show active line" option to be false by default.