Update .gitignore

ignore config/discourse.pill
Add '+' and '-' support to the autocomplete plugin
ember rc3 upgrade
click tracking broken for AGES
thinking about it .. WE ALWAYS track external links. WE DON'T display external link counts inside oneboxes.

Reverting to old behavior so we can fix properly
before:

Finished in 6.38 seconds

after:

Finished in 1.52 seconds
collapse some slow tests
Merge pull request #751 from PabloC/master

Ignoring config/discourse.pill
Merge pull request #752 from ZogStriP/add-autocomplete-support-for-plus-and-minus

Add '+' and '-' support to the autocomplete plugin
speed up tests
a few more ignores per @miketheman
undo stuff I should not have committed
speed up tests
add the ability to find the first notify private message
fix regression