updated logic to unpublish older versions when a version is published

Updated test so that it does not provide a version or org so that we match what the form is doing DMPRoadmap/roadmap#191

broken generic error message handler apart into separate create/update/destroy versions. updated calls within the controllers and fixed tests DMPRoadmap/roadmap#227

Added obj_name param to the generic error message handler on application_controller. Updated all save error handling to render the page rather than redirect DMPRoadmap/roadmap#227

updated phases and templates controllers to use new error message helper on application_controller

added generic 'Unable to save your changes' message for template create/update failures

fixed broken route to undefined edit path and replaced with redirect to correct route

removed exclamation from .save. This prevents the routine from ever returning false

updated seeds to use managing institution abbreviation instead of hard-coded 'CC'. Added basic functional tests for templates controller with small adjustments to check for nils in view and controller

updated templates controller so that editing details does not send user to 'view all templates' page DMPRoadmap/roadmap#192

removed auto-creation of phase from templates controller. Updated template view to allow the 'Add Phase' tab to appear if the template.org == current_user.org DMPRoadmap/roadmap#191

addresses further issue on DMPRoadmap/roadmap#191 by setting the phase to modifiable

fixes DMPRoadmap/roadmap#191 by creating a default phase

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

switched to using the hash for data access for admin_template view and associated partials

Replaced I18n.t(...) from controllers. DMPRoadmap/roadmap#98

Moved Actions, views, and partials for sections/phases/questions/suggested_answers out of templates, and wrote up associated authorization

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

init commit of deep_copy for templates [untested]

fixed bugs introduced into templates by merge

added theme unit tests and started cleanup of remaining existing tests

added templates history page

create template action now produces a properly-filled in template

updated admin_previewphase action in templates controller

formatting and style changes

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