Update version for branch

MSP-10826
Search::Operation::Association

MSP-10826

`Metasploit::Model::Search::Operator::Association` only worked with
attribute operators, but this was rather limitting and lead to having to
reimplement custom operators on classes since they couldn't be used on
associations.  Now,
`Metasploit::Model::Search::Operator::Association#operate_on` will call
`#operate_on` on `#source_operator` (originally `#attribute_operator`)
to get the original operation, which will be wrapped in a
`Metasploit::Model::Search::Operation::Association`.  This is an
incompatible change as any visitors walking the tree will now have to
visit `Metasploit::Model::Search::Operation::Association` and use its
`#source_operation` to get the original operation and to translate that
operation to association's scope.  As a side-effect, this means that
association searches can be arbitarily nested without the need to
declare has_many through associations.
Declare search association using association tree

MSP-10826

`search_association` will still declare a near association as
searchable, but to declare far assocations as searchable, a tree of
association names can be passed to `search_associations`.
Fix YARD warnings

MSP-10826
Document undocumented objects

MSP-10826
Verbose docs for Search::Association

MSP-10826

Including how to use search_association and test those calls.
Verbose docs for Search::Attribute

MSP-10826

Cover set attributes, help in i18n files, and testing.
Use {include:...} to share docs between concern and DSL

MSP-10826
Search::Operator::Help docs

MSP-10826

Explain the expected format of config/locales/<lang>.yml entries.
Class docs with example

MSP-10826
Class docs with example

MSP-10826
Document interface in namespace docs

MSP-10826
Search::With module docs

MSP-10826

Includes how to define operators, including the interface, subclassing
`Metasploit::Model::Search::Operator::Base` or
`Metasploit::Model::Search::Operator::Single` and testing with the
'search_with' shared example.
Search::Query class docs with example

MSP-10826
Search module docs

MSP-10826

Overview of DSL methods and how to make a query.
Upstream merge; version bump
Merge pull request #22 from rapid7/bug/MSP-10826/generalize-search-association

Generalize search_association

MSP-10826 #land