Revert Dockerfiles back to their original but update get_branch_name.… #10

Job	Run time
Determine which jobs to run	11s
Config Opts (job1)	7m 26s
Config Opts (job2, --enable-all)	7m 23s
Config Opts (job3, --enable-grib2)	7m 30s
Config Opts (job4, --enable-python)	7m 21s
Config Opts (job5, --enable-ugrid)	7m 29s
Config Opts (job6, --enable-lidar2nc)	7m 24s
Config Opts (job7, --enable-mode_graphics)	7m 20s
Config Opts (job8, --enable-modis)	7m 25s
	59m 29s

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