[active_model_basics] translate: text
[active_model_basics] registration
[active_model_basics] fixes
Merge pull request #101 from khusnetdinov/active_model_basics

[active_model_basics] translate: text
Update active_model_basics.md
Update caching_with_rails.md
Merge pull request #103 from avgnasu/patch-1

Update caching_with_rails.md
Security alerts from gemnasium are so annoying
Update upgrading_ruby_on_rails.md
Update
Update active_record_callbacks
Update association_basics.md
Update active_record_querying
Merge pull request #104 from morsbox/active_record_basics.md

Update active_record_basics.md
Merge pull request #105 from morsbox/active_record_callbacks.md

Update active_record_callbacks
Merge pull request #106 from morsbox/association_basics.md

Update association_basics.md
Merge pull request #107 from morsbox/active_record_querying.md

Update active_record_querying
[active_support_instrumentation] translate
[active_support_instrumentation] fixes
[active_support_instrumentation] fixes 2