Fixed counter-intuitive user-link, redundant webhook build invocation for Tito method, problem with stuck pending queue when pending build task exists for chroot no longer owned by the project in which the build was launched.

• Support for use_bootstrap_container experimental feature of mock

• build_on_pagure_commit script refactoring
• support for importing build task only once
• modularity UI tweaks
• pag#67 copr edit-package-tito nulls out fields not edited
• fix Bug 1455249 - github webhook fires unnecessary builds
• support for copr-rpmbuild
• arbitrary dist-git branching

• Adds Gitlab webhooks
• Attempts to fix Pagure projects auto-rebuilds

• debugging infos in build_on_pagure_commit.py
• error handling in build_on_pagure_commit.py
• Bug 1448333 - Unable to edit someone's else project settings
• do not require .git suffix in Git repo URL for webhook rebuilds of Tito and MockSCM packages
• use MBS for building modules via UI
• add class for communicating with MBS
• add NSV property for modulemd generator
• "#55 Builds triggered by GitHub WebHook (tag event) do not enable Internet during build"
• use ModulemdGenerator for construnting the yaml file

• use custom chroot for modules instead of F24
• send the original filename to MBS
• get rid of 'unknown key username' warning
• fix modularity unit test
• validate uploaded yaml file
• dont print how to use a module when it is not succeeded
• move MBS_URL to config
• allow to submit optional params to mbs
• frontend act as a gateway between user and mbs
• allow to create module and it's action separately
• make new-lines work in blocks
• Bug 1442047 - Regenerate action is not restricted to an owner of the project.
• redirect output of update_indexes_quick in cron into /dev/null
• validate fork name characters (RhBug: 1435123)
• Bug 1433508 - Half-cancelled builds are not deleted correctly.
• Add extra step for setting up GitHub Webhook
• add "buildroot" repository into generated build-config
• python3 compatibility fixes in frontend core
• correctly set repo and ref to point to our dist-git
• replace fedorahosted links
• replace no-longer working fedorahosted links with the pagure ones