fixes #215
vioscreen encryption code
database pulls for information needed by vioscreen
add config info for vioscreen
add survey back to end survey screen
Move checkbox. Fix #216
removed unused variable, british gut works again
Merge pull request #221 from squirrelo/issue-216

Move checkbox
Merge pull request #217 from wasade/issue_215

fixes #215
Merge pull request #223 from wasade/issue_218

removed unused variable, british gut works again
Merge pull request #220 from squirrelo/viocare-initial

Vioscreen initial addition
Gender dropdown menu
Fixes

- Remove erroneous unique constraints on ag_human_survey
- Add support for vioscreen to ag_login_surveys
- Add stable IDs for survey questions
Add stable survey_question_ids
Merge pull request #224 from adamrp/gender_stableIds_vioscreen_rmUniques

Gender stable ids vioscreen rm uniques
fix missing text line
fix vioscreen issue
Constraints and the like
Merge pull request #225 from squirrelo/oops-british-text

Fix british text and vioscreen
moving db import to package level init