Initial connection of front-end and backend to render preview for section import
Work on correctly displaying warning/errors on the templates
Provided package initialization for converters
Additional changes to handling of import exceptions
Include the new template for import error handling
Link to import from the object page and preserve id in url
Working file upload functionality and preview results in one page
Implement import section save
Merge remote-tracking branch 'origin/develop' into rebase_import
Make it so that access to "/admin" requires superuser role or permission
to read "/admin" in context 1 (the admin context).
Merge pull request #75 from reciprocity/feature/restrict_access_to_admin

Restrict access to the admin dashboard to users with superuser permissions, or
icon fix in lhs
Refactored import code and included redirect on submit
Merge branch 'rebase_import' of https://github.com/reciprocity/ggrc-core into rebase_import
Template cleanup for import

* removing tabs and non-HAML markup
Remove dynamic 'container-fluid' width and toggle
Merge pull request #74 from reciprocity/rebase_import

Rebase import
Enable setting bootstrap admins from environment variable

* also update app.yaml.dist to use `BOOTSTRAP_ADMIN_USERS` setting
* set `GGRC_BOOTSTRAP_ADMIN_USERS` in `bin/init_env`
Add `null-if-empty` attribute for context.* hidden inputs

* `null-if-empty` sets input value to `null` if value is empty
* use `null-if-empty` on `context.id` and `context.href` in forms
Merge pull request #76 from reciprocity/feature/fix-the-things

Fix context and permissions issues