Update Chaos.css to include indent-guide and fold

Add indent guide to theme.
Modify ace_fold to be more subtle (the big inline ace_fold widgets are a bit distracting on this dark theme).
This is true to the original Chaos theme (Space Editor).
Merge pull request #1332 from akumpf/patch-1

Update Chaos.css to include indent-guide and fold
occur+isearch: fixing highlighting for big font sizes
occur+isearch: adding occurisearch command and binding it to Ctrl-o by default
occur+isearch: fixing tests
Merge pull request #1334 from LivelyKernel/occur-with-isearch

Occur with isearch
cleanup
fix #1337 bad interaction of removeFolds and updateWrapData
fix test
Merge pull request #1340 from ajaxorg/wrap_bug

fix #1337
pass target to eventListener as a second argument
add EventEmitter.off
autodetect platform in HashHandler
add divshot to list of sites using ace
add emmet extension
add link to chocolatejs
remove console.log
Merge pull request #1311 from ajaxorg/emmet

Add Emmet extension