don't use anymore "swiftmailer.transport.eventdispatcher" service
Merge pull request #17 from lexik/fix_abstract_eventdispatcher

Don't use anymore "swiftmailer.transport.eventdispatcher" service
fix bug adding text content when is empty
Merge pull request #18 from bedyseb/master

fix bug adding text content when is empty
removed empty div
fixed css class in layout template too
added getLastModifiedTimestamp() to get the tempalte timestamp in twig loader
updated doctrine requirements
add checksum on Email / Layout entities for improve cache
remove md5() in EmailLoader
add method getCharset in interfaces
update doc on entities Email and Layout for getCharset methods
Merge pull request #21 from bedyseb/master

Improve management of cache checksum
Fix wrong namespace of class Twig_Error_Loader in EmailLoader
Merge pull request #22 from bedyseb/fix_loader_ns

Fix wrong namespace of class Twig_Error_Loader in EmailLoader
Merge branch 'master' of github.com:lexik/LexikMailerBundle