confluence cleanup
XBMCTinyXML: refactoring: fully remove CStdString
don't associate m3u playlists with pictures
TinyXML::Parse: refactoring: generate RegExp only when needed, use search for char instead search for string, const ref param allow to call function directly, without re-copying data to new string
XBMCTinyXML::Parse: refactoring: remove unused parameter; call function with std::string (without .c_str())
XBMCTinyXML::Parse: remove caseless flag from RegExp
[win32] Remove CStdString from force included win32 precompiled header
DAVCommon: remove CStdString
[win32] include <stdint.h> in WINJoystick and BitstreamStats
Merge pull request #3481 from Karlson2k/xbmctinyxml_update_03

XBMCTinyXml small refactoring
Merge pull request #3486 from ronie/m3u

don't associate m3u playlists with pictures
Merge pull request #3484 from ronie/confluence-fixes

[Confluence] cleanup