Merge pull request #179 from upsilonIT/hide_left_table

Hide fixed columns table when numFixedColumns is 0
Release 0.2.1
Fix changelog bulleting
Use more standard ~ for handlebars version
Upgrade grunt-bower-task to 0.4.0

This upgrades grunt-bower-task's version of bower, which fixes the
problem with the tmp package.
Merge branch 'master' into sreenath/multiselect

Conflicts:
	dist/ember-table.min.js