Collection of minor changes: autogen.sh - remove config.cache before running ./config...

Collection of minor changes: autogen.sh - remove config.cache before running ./configure gst/elements/gstfakesink.c -...

Original commit message from CVS:
Collection of minor changes:

* autogen.sh - remove config.cache before running ./configure
* gst/elements/gstfakesink.c - print out the size of the buffer, too
* plugins/Makefile.am - removed a spare trailing backslash
* plugins/arts/gst_artsio_impl.cc - change the scale back to 0.5
* plugins/oss/gstosssrc.c - change name slightly to match osssink