Cleanup in tap/tun plugin

git-svn-id: svn://svn.code.sf.net/p/dmtcp/code/trunk@2166 ba6dc0ae-232f-0410-883f-9ebac64fc565
Compilation fix for realpath wrapper.

git-svn-id: svn://svn.code.sf.net/p/dmtcp/code/trunk@2167 ba6dc0ae-232f-0410-883f-9ebac64fc565
Autotest: make OpenMPI check faster.

git-svn-id: svn://svn.code.sf.net/p/dmtcp/code/trunk@2168 ba6dc0ae-232f-0410-883f-9ebac64fc565
Fixed some compiler warnings.

git-svn-id: svn://svn.code.sf.net/p/dmtcp/code/trunk@2169 ba6dc0ae-232f-0410-883f-9ebac64fc565
Revert rev 2168.

git-svn-id: svn://svn.code.sf.net/p/dmtcp/code/trunk@2170 ba6dc0ae-232f-0410-883f-9ebac64fc565
PID: Added dmtcp_get_real_[pt]id() and dmtcp_real_tgkill()

git-svn-id: svn://svn.code.sf.net/p/dmtcp/code/trunk@2171 ba6dc0ae-232f-0410-883f-9ebac64fc565
PID/File: Bugfix for realpath wrapper.

git-svn-id: svn://svn.code.sf.net/p/dmtcp/code/trunk@2172 ba6dc0ae-232f-0410-883f-9ebac64fc565
Rename ProcessEvent to EventHook everywhere.

git-svn-id: svn://svn.code.sf.net/p/dmtcp/code/trunk@2173 ba6dc0ae-232f-0410-883f-9ebac64fc565
Added EventHooks for CoordinatorAPI and SharedData.

git-svn-id: svn://svn.code.sf.net/p/dmtcp/code/trunk@2174 ba6dc0ae-232f-0410-883f-9ebac64fc565