Merge pull request #8641 from arunagw/warning_removed_unused_var

Remove 'assigned but unused variable' warning
Revert "reminder to run bundle after setting up rails-dev-box"

This reverts commit 41381c19d1f3920ee9540aff0d35209cb43fb057.

Reason: This doesn't quite fit the flow where it's added. Let's add this
someplace else if it's explicitly required.

[ci skip]
Revert "Add rake default to description"

This reverts commit 0d8ca8124de9b3a5f6398a28d79baca935a1f96c.

Reason: docrails isn't the place to do this. Also, I feel this is
not really required.

[ci skip]
Revert "Add rake test description"

This reverts commit a3309caf338830849acd826bc6ad14f972e787db.

Reason: docrails isn't the place to do this.

[ci skip]
Merge branch 'master' of github.com:lifo/docrails
Revert "Detect rbenv and update the shebang"

This reverts commit 7173c4f931c9026bd3bc0b644d93dae744433f09.
This reverts commit a562f9fa09967eba26dff1c3bc8aa85b6f0a72ff.
Revert "Install binstubs by default"

This reverts commit f34c27a452418d8aa17f92bb0fd7ae97b5f7e252.

We'll be taking a different tack on this with new `bundle binstubs <gem>` support.
work off FIXME comments in AR rename_column_test.rb

There were a couple of tests, which had FIXME comments in palce of
assertions. I replaced these FIXME comments with actual assertions to
get more feedback from our test suite.
Merge pull request #8636 from senny/work_off_fixme_in_rename_column_test

work off FIXME in rename_column_test
small refactoring, added blob_or_text_colum? in AbstractMysqlAdapter
Merge pull request #8644 from acapilleri/abstract_mysql

small refactoring, added blob_or_text_colum? in AbstractMysqlAdapter
fix PG typecasting errors
Test that assert_not returns true. Use assert_raises instead of doing begin/rescue/else.
mysql does not return alias names, so fall back
fix time typcasting on group counts in PG
add missing require and fixtures
Fix up/down column change example code formatting
Merge pull request #8650 from codeodor/patch-1

Fix up/down column change example code formatting
Document JoinTable migration generator
Update documentation for yml usage