Survey Work, Bug Fixes, and Changes for Consistency

modules/survey.py
- consistency fixes
- make addQuestion function more "general"
- improve the "default case" if a user doesn't enter a priority question code in creating a template. Avoids a cryptic map error and instead provides a default numeric priority question - sort of like the Assess module.

controllers/survey.py
- consistency fixes

private/templates/SandyRelief/SICanvasData.csv
- add priority question

private/templates/SandyRelief/sandySIquestionnaire.csv
- add priority question

static/themes/SandyRelief/sandy.less 
- fix readability error in entering a completed survey form