Merge pull request #23 from kefirfromperm/master

Merge all latest changes.
upgrade quartz to 2.2.1
upgrade quartz to 2.2.1
fixed doc url
schema 2.0 to 2.2 upgrade

quartz database schema has been upgraded since 2.2 to include one
additional column (SCHED_TIME) in QRTZ_FIRED_TRIGGERS table. For more
details see:
https://github.com/quartznet/quartznet/blob/master/database/schema_20_to_22_upgrade.sql.
fixed indentation in some of the .sql files
Merge pull request #24 from ozren1983/master

Database schema updates for quartz 2.2
Rename README.rdoc to README.md
Update README.md
Update README.md
fixed missing import
Merge pull request #28 from weseek/master

fixed missing import
Merge pull request #26 from stokito/master

Good work.
update Travis CI, update version to snapshot version
Added Travis Build status
remove jars from ignore list to include wrapper
Merge branch 'master' of github.com:grails-plugins/grails-quartz
Make tests Grails 2.3.x compatible
add travis CI credentials config
update secure tokens