Move stream back to public method

Undeprecate.  This is the only way to add things such as filters to the
underlying stream.  Horde_Stream, but its description, is meant to be a
utility method to help with accessing a stream, but its methods are not
the exclusive method.
[mms] Fix documentation regarding proper license for this package (BSD).

It has always been BSD, and the code files themselves have always
pointed to the BSD license.  It was only package.xml and the COPYING
file included (but not referenced anywhere) that referred to LGPL.
phpdoc
Don't need to keep track of string length.

strlen() in PHP is cheap, since the internal string struct already keeps
track of this.

Also, _position -> _pos to make code a bit clearer.
Fix stream_write() and stream_seek() for string wrapper.

Add stream_close().
[mms] Allow jQuery Mobile script to be packaged in same file as other jquery code.
These may be called before onDocumentReady code is ever run
Set some global config settings before identifying that Horde is fully initialized