Bump lib version to 2.
Bump lib version to 2.

Original commit message from CVS:
Bump lib version to 2.

Lachann/gstreamer,mrchapp/gstreamer,mparis/gstreamer,drothlis/gstreamer,lubosz/gstreamer,centricular/gstreamer,mrchapp/gstreamer,jpakkane/gstreamer,Distrotech/gstreamer,mrchapp/gstreamer,Distrotech/gstreamer,krieger-od/gstreamer,cablelabs/gstreamer,lubosz/gstreamer,Lachann/gstreamer,magcius/gstreamer,surround-io/gstreamer,justinjoy/gstreamer,ensonic/gstreamer,shelsonjava/gstreamer,jpxiong/gstreamer,mrchapp/gstreamer,mparis/gstreamer,ylatuya/gstreamer,krichter722/gstreamer,jpxiong/gstreamer,krieger-od/gstreamer,mparis/gstreamer,cfoch/gstreamer,shelsonjava/gstreamer,surround-io/gstreamer,cfoch/gstreamer,lovebug356/gstreamer,ensonic/gstreamer,drothlis/gstreamer,collects/gstreamer,jpakkane/gstreamer,Distrotech/gstreamer,Lachann/gstreamer,ylatuya/gstreamer,krichter722/gstreamer,jpakkane/gstreamer,surround-io/gstreamer,ylatuya/gstreamer,Lachann/gstreamer,shelsonjava/gstreamer,StreamUtils/gstreamer,drothlis/gstreamer,lovebug356/gstreamer,cablelabs/gstreamer,lovebug356/gstreamer,justinjoy/gstreamer,surround-io/gstreamer,jpakkane/gstreamer,justinjoy/gstreamer,lovebug356/gstreamer,magcius/gstreamer,StreamUtils/gstreamer,StreamUtils/gstreamer,krichter722/gstreamer,ylatuya/gstreamer,ahmedammar/platform_external_gst_gstreamer,magcius/gstreamer,justinjoy/gstreamer,centricular/gstreamer,Distrotech/gstreamer,ahmedammar/platform_external_gst_gstreamer,collects/gstreamer,lovebug356/gstreamer,mparis/gstreamer,lubosz/gstreamer,shelsonjava/gstreamer,justinjoy/gstreamer,ylatuya/gstreamer,ahmedammar/platform_external_gst_gstreamer,collects/gstreamer,Lachann/gstreamer,drothlis/gstreamer,ensonic/gstreamer,jpxiong/gstreamer,magcius/gstreamer,mparis/gstreamer,collects/gstreamer,lubosz/gstreamer,krichter722/gstreamer,StreamUtils/gstreamer,krieger-od/gstreamer,cfoch/gstreamer,centricular/gstreamer,shelsonjava/gstreamer,centricular/gstreamer,ahmedammar/platform_external_gst_gstreamer,centricular/gstreamer,StreamUtils/gstreamer,krieger-od/gstreamer,cfoch/gstreamer,magcius/gstreamer,cablelabs/gstreamer,cablelabs/gstreamer,krichter722/gstreamer,lubosz/gstreamer,surround-io/gstreamer,jpakkane/gstreamer,ahmedammar/platform_external_gst_gstreamer,collects/gstreamer,jpxiong/gstreamer,cfoch/gstreamer,jpxiong/gstreamer,drothlis/gstreamer,mrchapp/gstreamer,cablelabs/gstreamer,krieger-od/gstreamer,ensonic/gstreamer,ensonic/gstreamer,Distrotech/gstreamer