Add test for findAndCountAll with required belongsTo and limit

Test currently fails. See issue #1953.
restore breaking test
added pretty complicated case, that fails at the moment
fixed pretty complicated test
small fix, and prittified indentation a bit
Merge branch 'master' into associating-sections-when-deletions

* master:
  Allow removing has-many associations by id
  Update README.md
  #2338 - Associations remove[AS][plural]
  Use the new beta build env on Travis
  Text fix
  More promises
  Promisify tests
  Remove unnecssarily asynchronous tests
  Update changelog with BC breaking hstore change
  Update json test expectation
  Merge fix
  Update pg-hstore
  Removed no longer supported nested hstore objects from tests. Improved hstore array handling.
  Use pg-hstore for hstore parsing
  Hstore empty string tests
fixed indentations
Fix forIn rather than each for iterating on object
Merge pull request #2604 from overlookmotel/fix-forIn-over-object

Fix forIn rather than each for iterating on object
Mark a pg connection as invalid on connection err. Builds on PR #2557 by @jawj
Restructured docs generator
MaraiaDB dialect DATE parsing fix
fix hardcoded timezone test

This test was dependent on a test having up to ~50ms of latency, which
is not necessarily guaranteed. This allows it to differ up to the actual
elapsed query time.
Merge pull request #2617 from mbroadst/fix-timestamp-test

fix hardcoded timezone test
refactor update/insert query to support additional features

  - added logic to handle corner cases regarding autoIncrement values
  - added support for OUTPUT variables (mssql)
  - added support for identity wrapping (related to point 1)
Merge pull request #2609 from mbroadst/refactor-update-insert-query

refactor update/insert query to support additional features
Now you can use bare database URIs with sqlite also

Before db-uri like sqlite://database.db didn't work with sqlite. This little change fixes it.
Merge pull request #2619 from theikkila/master

Now you can use bare database URIs with sqlite also
Moved docs to main repo
Fix example in references: string