Merge branch 'develop' into release/2.2
Merge branch 'release/2.2'
Fixed the default Precheck mode to use a valid class

... and prevent errors being thrown
Merge pull request #119 from real34/hotfix/invalid-precheck

Fixed the default Precheck mode to use a valid class
Fixed the default Precheck mode to use a valid class

... and prevent errors being thrown
fix callback message generation data
#117 Fix bug causing error at the moment of changing the column type
Fix readme, missing array key in alter_field example
#117 Change field type. Added extra condition to the change column type feature
Removing legacy reset/restore methods and array key
Merge branch 'develop' into release/2.2.1
Merge branch 'release/2.2.1'
Minor change for php5 in Command/MigrationShell.php, removing an &
Fix rename_table to avoid syntax error on postgresql.
Merge pull request #123 from okinaka/fix-rename_table

Fix rename_table to avoid syntax error on postgresql.
Allow the migration to be run as dry; only outputting the SQL and not touching the database
Add dock blocks
Merge pull request #125 from Jippi/feature/dry-run

Feature/dry run
Minor change for php5 in Command/MigrationShell.php, removing an &
Merge branch 'hotfix/126-remove-assignment-by-reference'