Add angular-toggle-switch

Usage:

```html
<toggle-switch
    model="switchStatus"
    on-label="sí"
    off-label="no">
</toggle-switch>
```
Merge pull request #70 from tlvince/feature/toggle-switch

Add angular-toggle-switch
Add angular-toggle-switch to karma
Merge pull request #71 from tlvince/bug/toggle-switch-karma

Add angular-toggle-switch to karma
localized UI text
updated add inventory manual form
updated add inventory manual form Refs #149
removed unnecessary variables
updated fixture data
refactored factories, updated factory so that inventory view works with factory(incomplete) Refs #149
completed refactoring of inventory to use factory Refs #149
Merge remote-tracking branch 'origin/master'