Make the following changes to facilitate compiling with gcc > 4.2.1:
* Add a patch from libtorrent-rasterbar's svn repo
* Disable compilation of the exmaples, and the tests for the related
boost libs. The examples weren't installed anyway, so no loss.
Extra glob for CONFLICTS not needed now that libtorrent-rasterbar-15
is no longer devel
Bump PORTREVISION