Merge pull request #307 from avalonmediasystem/hotfix/matterhorn-security-issue

Update submodule with fix for matterhorn LTI/OAuth vulnerability
Merge pull request #310 from avalonmediasystem/hotfix/matterhorn-security-issue

update avalon-felix submodule
updating tags
version change
Merge branch 'develop'

3.1 release
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NU Production customizations:

Add the ability to generate tab-delimited transcoding reports on master files
Shrink NU deploy branch to the bare essentials
Change nuldap so netID => username, email => email
Reindex everything on deploy
Only reindex if the AVALON_REINDEX environment variable is set
Generate handles
Add handle dependencies
Put the NOID template in the config file
Symlink lti.yml on deploy
Deploy the right environment file
Save NOID minter state between generations
Create Admin::Collection.after_save hook to create the dropbox permissions file.
Add all administrators to collection permissions list
Add a courses controller to inspect/delete/purge initialized LTI courses
Remove quotes from $@ command execution in locking_runner script
Remove user 'avalon' from default collection perms list
Update .ruby-version
Add nu-prod to list of stages
Update capistrano ruby version
Create NU specific deployment branch
Make sticky footer
Create NUL header
CSS customizations for NUL, header and sticky footer
Add UI-specific deployment changes
Shrink the size of the footer
Update footer contact information
New home page text
Remove comment form intro and the request for access subject dropdown option
Update links on the homepage to live collections searches
Update Gemfile.lock
Fix SCSS syntax error
Fix featured collection URLs
Autocomplete email addresses directly from LDAP
Fix LTI user instantiation
Revert "Fix LTI user instantiation"
This reverts commit c067763a5a326fcc00c17b58b01d1da9764282ea.
Work around "nu*" accounts in Canvas
Footer tweaks
Refactor collection permissions callbacks
Delete the dropbox on disk before destroying the object
Add Errbit support
Fix display issues on file upload/attach page
Add group_ldap.rb to deploy
Update errbit app key
Override collection editor abilities for NU Production
Rewrite legacy handles