Added new functions to the registry for reading / writing byte arrays
of binary content and escaping registry keys that contain binary
content. Modified code which reads/writes location of dll or javascript
for components to use new ReadBytesUTF8/WriteBytesUTF8 and which uses
or reads the keys to use EscapeKey and UnescapeKey.
r=dveditz
git-svn-id: svn://10.0.0.236/trunk@69307 18797224-902f-48f8-a5cc-f745e15eee43
90d0498159