added depth line model and interface
moved location data from pane to menu item pop up window
moved location data from pane to menu item pop up window
img adjust moved to menu/popup-window,visibility removed,remaining ctrls to top
added clickable legend to control line visibility
began depth model changes and new binary.read incorporation
added tests for DepthLine
updated depthline popup. fixed line edit. improve C&B
cleaned up pep8. removed depends_on in data_session so this runs. may need back.
Merge branch 'master' into feature/mult-freq-layout
added lock trait to depth line
first round of refactoring by adding new plot_container class
intermediate commit in state that sort of works.  have 3 hplots +mini in vplot
intermediate commit in state that sort of works.  have 3 hplots +mini in vplot
intermediate commit. working better. plot selection dialog. parallel line edit
can now show/not any freq and the slice view. adjust img works from menu.
Merge branch 'feature/plot_cores' into mergetest-multfreq-cores

Conflicts:
	hydropick/model/survey_line.py
	hydropick/ui/survey_line_view.py
	hydropick/ui/tasks/survey_line_pane.py
after merging I fixed the hdf5 to save what i needed and did some minor clean up.
cleaned up.  erased obsolete code
Merge branch 'master' into new_test_merge