[pvr] workaround a deadlock if no pvr addons exist and you activate the pvr manager
[stdstring] get rid of CStdString from utils/ (part 1)
[stdstring] get rid of CStdString in dbwrappers/
[stdstring] get rid of CStdString in playlists/
[stdstring] get rid of CStdString in view/
[stdstring] get rid of CStdString in network/
[stdstring] get rid of CStdString in filesystem/*File.cpp|h
[stdstring] get rid of CStdString in filesystem/*Directory.cpp|h
[stdstring] get rid of CStdString in filesystem/(Music|Video)DatabaseDirectory/
[stdstring] get rid of CStdString in filesystem/
[stdstring] get rid of CStdString in dialogs/
[stdstring] get rid of CStdString in addons/
[stdstring] get rid of CStdString in cdrip/
[stdstring] get rid of CStdString in common/
[stdstring] get rid of CStdString in cores/AudioEngine/
[stdstring] get rid of CStdString in cores/DllLoader/
[stdstring] get rid of CStdString in cores/paplayer/

NOTE: Changes DVDPlayerCodec's content-type to lowercase
[stdstring] get rid of CStdString in cores/IPlayer and children
[stdstring] get rid of CStdString in cores/
[stdstring] get rid of CStdString in epg/