Bugfix on truncate command
Fix on sqlsrv_forge drop_table
Style correction
removed unnecessary assignment
Bugfix on the sqlsrv forge driver create_table function
Bugfix on the sqlsrv forge driver rename_table function
Bugfix on the active record join statement with empty conditions
Revert "Bugfix on the active record join statement with empty conditions"

This reverts commit 2cfbfc54dc68d9e7ed7c20af4cf7693736bbd447.
Revert "Bugfix on the active record join statement with empty conditions"

This reverts commit 2cfbfc54dc68d9e7ed7c20af4cf7693736bbd447.
Merge branch 'upstream_21' of https://github.com/blowdoof/CodeIgniter into upstream_21
Added changelog entries
Merge pull request #2689 from blowdoof/upstream_21

Bugfix 2.1 sqlsrv driver
Fix some spacing issues from PR #2689
Make oci_execute() calls inside num_rows() non-committing. Fixes #696.

Fixes bug in Oracle driver. Calls to oci_execute() inside num_rows()
of the Oracle driver can be made non-committing to fix bug with transactions.
Since calls to oci_execute are only there to reset which row is next in line
for oci_fetch() calls, it's fine to not commit.
Merge pull request #2761 from a-krebs/2.1-stable

Make oci_execute() calls inside num_rows() non-committing. Fixes #696.
Manually apply an improved version of PR #2427
Deleted useless .htaccess file, added missed index.html files.
Added a .htaccess file to the application/cache folder for security-in-depths reasons (de bene esse).
Merge pull request #2909 from enderteszla/2.1-stable

added missed index.html files.
Corrections to the tutorial.