Fix misstypo quote_column_name to quote_table_name
Merge pull request #37 from shiroginne/master

Wrong UPDATE sql query for postgresql db
Prep for release 0.4.2
this works with SQLServer and appears to be generally less database specific and fragile
Merge pull request #38 from gaslight/master

Use more generic (and SQL Server compatible) locking in reserve
Rails 4 compatibility

* also bumps the activerecord dependency requirement to be 3.0 or higher as delayed_job 3.x does not support activerecord 2.x
* because of the activerecord 3.0+ requirement change, the scoping done in backend/active_record.rb can be updated to use Rails 3 query methods
* also removes a spec that tested `attr_accessible` which is no longer part of Rails 4
Merge pull request #39 from agrobbin/master

Rails 4 compatibility
Rename spec_helper to spec/helper
Add Coveralls for code coverage reporting
Add Coveralls badge [ci skip]
Update delayed_job dependency to version ~> 4.0.0.beta1
Bump major version to be consistent with delayed_job version
Fix generator for activerecord migration file fixes #41
To be more consistent, removed brackets from next_migration_number method definition and call
Same fix added to DelayedJob::UpgradeGenerator
We no longer use lock_exclusively!
Optimized lookup for Postgresql and MySQL. Falling back to read-ahead for others
Merge pull request #46 from collectiveidea/fix-job-locking

Fix job locking
Merge pull request #45 from michalczapko/fix-migration-generator

Fix generator for activerecord migration file
Expand the Travis build matrix to run against multiple versions of ActiveRecord