bugfixing update customized template

added versioning/updating for customizations, and updated display logic for customizations on admin_index page

customizations generate new templates or template versions

initial customization functionality

fixed bug where sections not editable, questions not saveable

first step in reducing page edit sql queries

Merge branch 'final_schema' of https://github.com/DigitalCurationCentre/roadmap into final_schema

move plan list settings from project to plan

added answers_controller tests

fixed issue with routes test

init commit of deep_copy for templates [untested]

fixed bugs introduced into templates by merge

fixed a few merge conflicts

added theme unit tests and started cleanup of remaining existing tests

fixes post merge

merge in changes from origin

first port of plan creation and editing to new data model

port of plan creation and editing to new data model

added templates history page

Merge branch 'final_schema' into final_schema

create template action now produces a properly-filled in template

updated admin_previewphase action in templates controller

formatting and style changes

resolved merge conflicts

merged final_schema changes into visibility

fixed merge conflicts

fixed merge conflicts in branding.yml and schema.rb

updated api templates endpoints to use new data access

updated additional parts of the admin_phase view to use the new schema's data access. Additionally changed models for suggested_answer, user, guidance_group and question to better reflect the associations in the schema

extracted plan visibility work out of dev branch for PR to DCC