sort only if sortkey exists

seems to have problem with some version of angular
Merge pull request #135 from icyasblue/master

sort only if sortkey exists
Exposes totalItems for tableajax in there response
Added a callback function so we can access the data when it's loaded
totalItems was set to "" instead of 0, if no data
fix for tablelite row drop button overlay
bower.json dependency fixed
Merge pull request #139 from bomsy/upstream

fix for tablelite row drop button overlay
Cleanup
Merge remote-tracking branch 'upstream/master'
Merge pull request #137 from ilijamt/master

Exposes total items
header template formatting fixed
on-click-sort-direction option added to tables
snug-sort-icons feature added to tables
v2.0.7 released

fixes #141
dist updated
master merged