add adb to the disttools

Change-Id: I898fa5c9396606144e57dba8453f476b9e9440ab
add echochanged function

ignore bash/vim/nano config files in echochanged function, change output format

Change-Id: Ifb298ba430f2c9f4423716d9fd365664ba65adb6
add repolog function

repolog: jellybean -> cm-10.1

Change-Id: I083e63fc72c5c152207196be1302f70cf430fe03
hardcode build user and host

Change-Id: I1b8132f11bb249dd7a950662c02898da9b4584c0