Added SCSS as a separate mode

Ace supports SCSS separately from Sass, so they should be in separate
configs.
Fix for autoIndentOnPaste when pasting a block with leading whitespace on the first line to the same column
Implement a basic document statistics tabulator.
Add doc string. ;-)
Merge pull request #213 from robru/document-statistics

Implement a basic document statistics tabulator. (Fixes #211)
Merge pull request #210 from wpapper/master

Added SCSS as a separate mode
Merge pull request #212 from TheKiteEatingTree/indentFix

Bug Fix for autoIndentOnPaste
Moved zed remote client/server code to zedapp/zedrem repo.
Update zedrem instructions
Fixes #214 by adding a "click" handler
Exclude some more directories from the file list of the Zed project
itself
Minor documentation fixes/extensions
Fix of project search zed::search no longer appearing in goto list.
Rebase on upstream master.