Fix bug of annotate position in routes

* release/2.6.2:
  v2.6.2
  Add known changes for 2.6.2.
  Retain existing position unless :force is passed
  Temporarily ignore integration tests
  Revert "Replacing old block with new one."
  Change email address
  Add .travis.yml
  switch deprecated "mock" for "double" in annotate specs
  use general file resolution for test files as well
  Replacing old block with new one.
  Fixed gemspec files attribute
  migrate.rake should live in lib/tasks
  Always load models, since they may not be autoloaded by Rails
  Handle the "--exclude" option correctly, #152 and #160
  FIX #157
  Pump version to 2.6.1 which fixes #22

This reverts commit b11928ed.

Fix for #157

Replacing old block with new one.

fix overwriting of namespaced model test annotations with non-namespaced model annotations

migrate.rake should live in lib/tasks

changing to get rid of deprecation warnings

the special-purpose file resolution method for test/spec files was failing
with namespaced test files (ex. User model attributes would annotate both
test/unit/user_test.rb as well as test/unit/foo/user_test.rb, instead of
only the former)

Fixed gemspec files attribute

Always load models, since they may not be autoloaded by Rails

Refactor initialization of exclude options

* update option parser
* didn't add tests b/c i'm not using rvm and can't see an easy way to add commandline option parsing tests

Use RDoc inline-code formatting

support the PostGIS adapter