Merge pull request #71 from maxcan/master

Added very provisional CSV export plugin for ng-grid for issue #70
adding i18n support and a few languages

Also added support for compiling with a different interpolation symbol.
adding function to watch for language changes.
adding fix for #66
changing paging behavior

if totalServerItems is 0 (default) then there are no jump to first/last
paging buttons.
changing so that pageToLast is disabled when totalServer items is 0
updating build to 1.6.0

fixing issues #66, #67,  #68, #69,
Updating SearchProvider to search only visible data.

Fixing more edge cases.
External/internal filters can now be in sync.

Fixed external filter bug and added an example on how to have
external/internal filter stay in sync.
Fixed grouping issue related to text now being ng-bindings.
Fix for issue #73
Merge Pull with master
Merge branch 'master' of git://github.com/ineedfat/ng-grid into ineedfat-master

Conflicts:
	build/ng-grid.debug.js
	ng-grid-1.6.0.debug.js
Search Provider now checks for filters on objects.

Added example.
Only toString() filter result, not values passed to filter.
Update component.json
Added plugins/README, plugins/playground.html, and column overrides for CSV generation