Introduced a flag enabling/disabling the DB-init-script

A flag in the configuration makes the startup of the database initialization
while startup process configurable.
Merge pull request #23 from chrismayer/init-flag

Introduced a flag enabling/disabling the DB-init-script
Prevent getEntitiesByIds to deliver data on empty Object[].
Added method to get the current User ID from Session.
Removed dangling whitespace.
Merge pull request #24 from weskamm/fixgetentities

Prevent getEntitiesByIds to deliver data on empty Object[].
Merge pull request #25 from weskamm/getCurrentUserId

Added method to get the current User ID from Session
Added boolean-field 'active' to User-model.

Added an 'active-flag' to the User-Model-Class as boolean field which will
be stored in the database.
Removed trailing whitespaces in User-class.
Added method to query database by boolean-field.

Implemented a method within the DB-DAO to query by a booelan field.
New web-interface returning all active users.

Implemented a new web-interface which returnes all user-objects in the
database, which have the flag 'active' set to true.
API-Docs, non-functional change.
getEntitiesByBooleanField-method now uses generics

Refactored the newly created getEntitiesByBooleanField-method by using
the strategy of Java-generics. So the returned database-objects are
already casted to the passed type on the DAO level.
Also adapted the existing call of the method.
API-Docs and formatting. Non-functional change.
Merge pull request #26 from chrismayer/extend-user

Added active-flag for user-objects
Add qualifier annotation to autowired annotation.
Merge pull request #27 from marcjansen/autowire-qualifier

Add qualifier annotation to autowired annotation.
Remove dangling whitespace & formatting.
Add a method to deleteEntities given a list.

Call this method with list of instances that implement the interface
BaseModelInterface and all instances will be removed from the database.
Add methods for retrieval using string comparison.

These methods will return List<EntityClass> using string comparisons.