Update to 0.0.22:

    Version 0.0.22
    Disable the test for changing the DTMF PT for now
    python: Require pygobject 2.16 to build
    rtpconference: The ptime/maxptime in caps are actually uints, not strings
    Update common and tabify Makefiles
    gitignore: Hide shm test
    readme: bump -bad requirement for shm plugin
    tests: Whitelist shm plugin
    tests: Clear GError* between tests
    shmtrans: Don't try to unref NULL pointer on error
    configure: Require GLib 2.16 for GIO
    GIO is required by the shm example, require it.
    tests shm: check that prepared is called
    shmtrans: Sync downstream element states before linking them
    shmtrans: Add debug
    shmtrans: Release teepad before stopping downstream elements
    shmtrans: Emit local candidate with new path
    shmstreamtrans: Set the sending in set property (not get)
    shmtrans: Set do-timestamp and is-live to true on shmsrc
    shmstreamtransmitter: Emit local-candidates-prepared
    shm: Document shm stream transmitter
    shmstream: Also ignore usernames that are empty
    shm: Replace base_ip with username
    simplecall: Add shm version of simple-call
    shm: Verify the success of state changes
    tests: Add tests for the shm transmitter
    shm: Implement shm transmitter
    shm: Add empty transmitter
    tests: Unlock lock in all cases
    fsplugin: Release lock on errors
    elementaddednotifier: Don't abort on elements that have no factory
    rtpsession: Use copy of codec because mutex has been unlocked
    Can't use the ca pointer because it is part of a list that
    has been unlocked.
    tests: Skip theora reception test if theora is not detected

(wiz)