libhb: remove windows ^M line endings


git-svn-id: svn://svn.handbrake.fr/HandBrake/trunk@5797 b64f7644-9d1e-0410-96f1-a4d463321fa5
libhb: make libhb internal character code utf8

This makes libhb expect all strings passed to it to be in utf8 format.
The cli converts the converts from the current code page to utf8.  libhb
converts back to the current code page when necessary for libraries that
expect it.


git-svn-id: svn://svn.handbrake.fr/HandBrake/trunk@5798 b64f7644-9d1e-0410-96f1-a4d463321fa5