Update to 0.9.7.
- Fix build

Disconnect a program which is not used by the port and which invokes compilation error from build.
Note that Debian has a fix for this, however a person who understands what the utility does is needed to check the patch.

Approved by:	portmgr blanket
MFH:		2014Q4
- Drop .la files, no dependees require them

Approved by:	portmgr blanket
Document OpenVPN Denial of Service vulnerability.