PURPOSE --
Checks that the revision letter(s) associated with the command load(s)
(CL) are not used by command loads that have already been delivered
for similar timeframes.
 
DEVELOPER --
Danny Jones
 
MODIFICATION HISTORY --
 
o Initial implementation 2/2/16

Classes
		abstract_check.abstract_check cl_revision_letter_check   class cl_revision_letter_check(abstract_check.abstract_check)     Make sure revision letter(s) for command load(s) differ from those already delivered     Methods defined here: revision_letter_set(self, cl_dirs) Given a sequence of command load directory names, return the set of unique revision letters used to generate the filenames of the SPC files in those directories.  The revision letter is the last character before the ".spc" extension. run(self) Methods inherited from abstract_check.abstract_check: __getstate__(self) Special method used when pickling this object.   Copies __dict__, but excludes all unpicklable values. __init__(self, my_checklist) __setattr__(self, name, value) __str__(self) gui_run(self) gui_set_pf_status(self) kill_result_box_gui(self) pack(self, my_frame, check_no) review_check_gui(self)

Functions
		run(pass_sms_name) Run the check stand alone.

Data
		FAIL = -1 PASS = 1 __version__ = '16.02.02'