* Pave the imports table
* Format error response if file is the wrong type.
* If a custom field doesn't exist, don't insert a blank string into the custom fields table
* CustomField::db_column_name can return the stored name in the db. It's slugified when that value is set initially. This fixes a weird issue where _1 was replaced with _xx
* Better error handling of failed file uploads. Also improve formatting of modal dialog
* Readd app.js to the js build, fixes collapsing sidebar
* Update JS
* Fix font size. We need to explicitly set the font size for the table because everywhere else that comes from bootstrap-tables
* Begin work on vueifying the importer
* Beginning work on migrating the importer to use a vue/components for future interactivity
Update JS
More importer work. Move to a vue based modal, begin handling of processing. Still need to port error messages.
More importer work. Move to a vue based modal, begin handling of processing. Still need to port error messages.
Update importer. Add error display. Fix modal, update vue-strap to vue2
More progress. Add select2 vue bits.
* Move to querying the db to find importer matches. It scales better on large datasets.
Fix select2 related issues. We were trying to initialize it twice, which led to the custom data being overwritten.
* Better error handling on uploads and deletion of files. Restore progressbar on upload.
* Add support for generic exception reporting if app.debug is enabled.
* Handle Http 500 errors better. Display errors if debug is enabled. Assorted cleanups.
* Fix codacy issues, remove unused methods.
* Only bind vue to the importer for now.
* Load vue for passport as well.
