Merge pull request #48 from rudigens/rtc

Push latest changes.
Merge pull request #49 from asfadmin/devel

Pull latest changes
Merge pull request #50 from rudigens/master

Pull latest changes
Merge pull request #51 from asfadmin/devel

Pull latest changes
Merge pull request #52 from rudigens/master

Pull latest changes
Merge pull request #251 from khogenso/devel

scons changes for color_browse and annotate_image
Merge pull request #252 from khogenso/devel

Removing unneeded include
Updates to write_hdf5_xml.
Merge pull request #53 from rudigens/rtc

Latest changes to write_hdf5_xml
Merge pull request #253 from rudigens/master

Latest changes to write_hdf5_xml
Add dependency on libasf_import