Renamed notifications

Ignore-this: 2295b25df065bc1b3b1471472edd1f84

darcs-hash:20090330183037-1e3d8-bcd2650f0f95874f9e71c21b9e6421dc6a557ddc
Removed microsecond from timestamp displayed in sip_audio_session

Ignore-this: 520b55a3e872d027adb07cbb5b380a0b

darcs-hash:20090330184123-1e3d8-9c27367f7db7b9130e72dea7ff407625da91f9f6