Search

Add search function for finding details by specified date interval and note (using 'like' in where clause).
Maybe it needs a new icon.

![search_001](https://f.cloud.github.com/assets/421761/499536/a6cf0a78-bc48-11e2-9abe-0917d3b24f23.jpg)
![search_002](https://f.cloud.github.com/assets/421761/499538/a9496d98-bc48-11e2-8cd4-9c09cdb54f29.jpg)