Precompile cell templates to prevent excessive compiles while scrolling
WIP: putting column offset on whole row, trying to make horizontal scrolling perform better
Make minColumnsToRender actually work right, improve horizontal scroll settings
Merging 3.0 horizontal scrolling perf branch

Merge branch '3.0' of https://github.com/angular-ui/ng-grid into 3.0

Conflicts:
	src/js/core/directives/ui-grid.js
Make uiGrid controller optional to cell directive

Just so that the tests pass. This is pretty hacky behavior