Add icons.
Revert "Add icons."

This reverts commit a2fd3f375ca03d8d543083ed0fe11b89a8fb6719.
Add icons.
Add recent sticky fragment
Add jar files, thrift.exe, Java classes for DB.
Revert "Add jar files, thrift.exe, Java classes for DB."

This reverts commit 692baf8999f5cacb74ea572888cd994a5ce8efe3.
1. Change class name from 'TwitterLoginButton' to 'LoginTwitterButton'
2. Make some variable names start with 'm' as convention