Add workflow documentation for uploading a schedule

The file is in graphviz format and the dot application is needed to
create a pdf. There is a generate.sh script that will create the pdf
files. Eventually this should end up in the ant build script and
connected to the documentation.
Add mapping from schedule columns to subjective categories to the
database

task #280: Add mapping between category names and schedule stations
[sf#260] 
http://github.com/jpschewe/fll-sw/issues/issue/280
Add web user interface for specifying mapping between schedule columns
and subjective categories


task #280: Add mapping between category names and schedule stations
[sf#260] 
http://github.com/jpschewe/fll-sw/issues/issue/280
Add JSON API for accessing the category, scheduling mapping information

task #280: Add mapping between category names and schedule stations
[sf#260] 
http://github.com/jpschewe/fll-sw/issues/issue/280
Use the category column mapping information in the subjective webapp

task #280: Add mapping between category names and schedule stations
[sf#260] 
http://github.com/jpschewe/fll-sw/issues/issue/280
Update changes

task #280: Add mapping between category names and schedule stations
[sf#260] 
http://github.com/jpschewe/fll-sw/issues/issue/280
Merge branch 'ticket.280.category-schedule-mapping'

Fixes 280