Fix harvester log info and display history using timeline

## A timeline is added for harvester history 

![image](https://cloud.githubusercontent.com/assets/1701393/4115219/c8634304-3274-11e4-986d-9373e876bab3.png)


## Client side paging is added to harvesters, groups, users, thesaurus, categories to avoid long list and having the create action at the bottom of the list.

![image](https://cloud.githubusercontent.com/assets/1701393/4116538/5527ddb6-3286-11e4-9d73-02bbe59e4785.png)


## Add capacity to define multiple filters in GeoNetwork protocol

![image](https://cloud.githubusercontent.com/assets/1701393/4119171/814a4e70-32a8-11e4-86fa-a94895f0399a.png)


## Others

* Loading indicators added to harvester list load and harvester history load