added seek event handling function.
autogen.sh: removed 'configure' in the last part

DCO-1.0-Signed-off-by: Jeongseok Kim <jeongseok.kim@lge.com>

Change-Id: I7e5a2355b9a188f4f402fe22b698c2c6cde25745
gstlpsink: Fix indentation for future work

Merge github.com:justinjoy/gst-plugins-lp

Conflicts:
	gst/playback/gstlpsink.c

DCO-1.0-Signed-off-by: Jeongseok Kim <jeongseok.kim@lge.com>

Change-Id: I8d3287e2569ab4ded9a9ab9c88675facd01d122b