added string id transformer
added bool searcher
rename string searcher
added role useradmin
Added auhority, user and group models and DAOs
deleted extra spaces
small fix
Added operation validator
added password converter
added reset password operation
added security entities
Merge branch 'master' of github.com:jpaoletti/java-presentation-manager-2

Conflicts:
	modules/jpm2-web/src/main/resources/messages.properties
	modules/jpm2-web/src/main/resources/messages_es.properties
added common loggin
added getter for entities on pm
addded helper method
added jquery form
added spring converters for String<->Entity