sync psOpen state with parent scope

- use bower_components as bower install dir
- move the dev deps which are belong to npm from bower.json to package.json
- update angular angular-mock and test
remove slider when scope be destroyed
Merge branch 'issues-fix' of https://github.com/island205/ng-pageslide into island205-issues-fix
0.1.3
merge and lint
0.1.8