added troubleshooting section, updated job dir permissions
added stand-alone demand builder utility
fix bug in dataset_store, move build_demand to utilities and document it better
add comments and pep8 compliance
minor cleanup to mvMax5 and updated scenario template to be compatible with mvMax5 mini-grid
Merge branch 'master' into mvMax5
Fixes associated with mvMax5 and cmd line demand builder...it works, needs testing
Merge branch 'mvMax5' of github.com:modilabs/networkplanner into mvMax5
Fixes associated with mvMax5.  Updated build_demand to output aliases rather than super long section > option names