Added a CONTRIBUTING.md file to for new contributors
Fixed grunt dependancy error
Test for empty dir syncing
Wait on clean disconnect event before finishing multiple-files-sync end
Add test for deep dir structures, filed https://github.com/js-platform/filer/pull/242
Bump filer to v0.0.20 to get fix for stack exhaustion
Test for syncing many small files in a dir, increase deep-tree limit
Bump our test timeout to 20s for long running sync tests
Test for deep and wide syncing
Tests for large file syncs