update activemodel dependency to rc1
purge mongoid_test_alt on tests
Allow gemspec to use 1.x mopeds higher than 1.4
Remove inflections configuration, add to spec helper
Move Nested attributes to Attributes::Nested
Remove mongoid.yml warning from railtie.

Since our session configuration warnings are quite comprehensive and
alert the user how to generate a mongoid.yml, this warning is no longer
needed.

This commit also removes the unused invalid database error from 2.x.

[ fix #3021 ]
Mongoize the value when building the uniqueness query

[ close #3018 ]
Update changelog
Chain lookups for parent scopes instead of dup'ing.

[ fix #3008]
[ close #3016 ]
Update changelog
Update changelog
Making .cache on context more consistent

[Fix #2667]
Support for using aliased field names in combination with validates_uniqueness. (Non-aliased names continue to function as before.)

Specs cover:
- aliased field names in combination with validates_uniqueness
- the presence of aliased field key in the errors hash
- aliased field in embedded documents
Fixed implementation, update changelog.

[ close #3011 ]
Fixing dynamic fields to recognize changes that are done nested more than one level down.
Update changelog
Remove parent_field field from polymorphic relations.

[ close #3029 ]
Remove inverse_of_field related metadata
Adding spec for #3015
Scope timeless to document instance.

[ fix #2991 ]