Increased sip_inv.c PJSIP SVN revision number

darcs-hash:20090514122445-58103-390858c8921e4258ce3f7066e0ed727b52b655d9
Fixed typo INTIVE->INVITE in core.invitation.pxi

Ignore-this: 3c57d9a2580fa8d3f437145c2c217d65

darcs-hash:20090514193709-1e3d8-3cfc1a805c72a52e844b5dfeab0583be4ce9ced6