add basic search
Merge branch 'master' into cm-search
update search widget, add cancel events
use cm dialog approach instead
remove dialog font override
remove search style
fix base problems
light source listing redesign
notification message after changing settings
fix buggy animation
Merge pull request #177 from mapbox/source-list-cleanup

Source list cleanup
fix for #100
simplified search, added close and help, better find and replace
fix spacing
Option -> Alt
Merge pull request #175 from mapbox/cm-search

Find and replace
allow removal of unsaved empty tabs, close #165
minor completion styling
start on clean/consistent tab style
add keybindings