chore(grunt): adds load-grunt-tasks module

kills some lines of code :)
Merge pull request #28 from PascalPrecht/load-grunt-tasks

chore(grunt): adds load-grunt-tasks module
doc(readme): fix transitionDuration typo
Merge pull request #31 from t3chnoboy/master

doc(readme): fix transitionDuration typo
fix(directive): allow overriding of options

Allow itemSelector/columnWidth to be passed with other arguments thus allowing
columnWidth to be selector.
Merge branch 'pr/29'

Close #29
chore(package): add repository field
chore(package): explictly list karma-jasmine task
chore(test): downgrade to grunt-karma 0.6

0.7 depends on unstable karma version which causes peer dep conflicts.
Merge branch 'master' into gh-pages
Update built version