Fix text-mode USSD on some Huawei modems
Merge branch 'master' of https://github.com/faucamp/python-gsmmodem
Fix unittest2 tests on Python 2.6
Fix for #27: PDU-mode SMS read address_text field

Fixes the regex used for parsing the +CMGR response. Thanks to BOOMER74
for his suggestion; I adjusted it a little bit.
Fix concat header for UCS2
Merge remote-tracking branch 'boomer74/master'

Conflicts:
	gsmmodem/modem.py
Add test case for flash SMS