AMD definition fix

"angular || null" will return an error if angular is not defined, not null as expected

this change makes ng-table compatible with requireJS (bug appeared when ng-table was loaded before angular, that can happen at random)
Merge pull request #284 from guillaumesmo/patch-1

AMD definition fix
Relax angular dependency so that 1.3.0-beta can be installed
Merge pull request #333 from andreychernih/relax-angular-dependency

Relax angular dependency so that 1.3.0-beta can be installed
fix bug with pagination in custom head mode
rebuild
Merge remote-tracking branch 'upstream/master'

Conflicts:
	ng-table.map
	ng-table.min.js