feat(use pagination for location search)

Since I (mostly) use pagination for ... well... changing pages, I found useful to bind it to the page parameter in the url.
The attribute "search" in the directive will change the parameters in the location path,
Eg: 
for an url like /someurl?someparam=1
and 
```<pagination search="page" ng-model="currentPage"></pagination>```
changing pages will change the url to 
/someurl?someparam=1&page=1.2.3 etc