[client][LogSearchSystems] Add editor

Navi:
![navi](https://cloud.githubusercontent.com/assets/27350/5223867/087b2a38-7708-11e4-9674-aa788218ec68.png)

Add:
![add](https://cloud.githubusercontent.com/assets/27350/5223869/288ef296-7708-11e4-981d-a18aa10fde1b.png)

Edit:
![edit](https://cloud.githubusercontent.com/assets/27350/5223870/448425b6-7708-11e4-96db-316ff53a4695.png)

We should add more strict validator later.