Initial commit.
Implemented Entity User. Added UserViewModel stub. Added index.zul
Update index.zul
Added User's DAO and Service
Added entities for Experiment, Condition, Sample, Replicate.
Missing annotations problem solved.

Problem related to missing annotation in some classes solved. Now the
system works properly using the Spring framework.
Changed UserDAO to UserDAOImpl, added interface UserDAO. Implemented
Sign In and Sign Up.
Sign in protocol modified.

User access is now controled by the SecurityInitiator and when an user
signs in or up its entity object is registered in the session.
Added entities for listting experiments.
Merge remote-tracking branch 'origin/dev' into dev

Conflicts:
	src/main/webapp/signIn.zul
Added DAOs and Services for listing experiments.
Different running and testing persistence configuration.

A different persistence.xml has been created for running and testing
purposes. Running context is configured to use a MySQL database, while
testing context is configured to use a HSQL database.
Home improved and experiment view created.

Home page has been improved and now shows the list of user's
experiments. In addition, the initial experiment data page was created,
currently without any real functionality.
Added editable form for experiments
Added fields for experiment data
Basic experiment creation and edition code added.
Merge remote-tracking branch 'origin/dev' into dev

Conflicts:
	src/main/java/es/uvigo/ei/sing/mla/view/models/HomeViewModel.java
	src/main/webapp/experimentData.zul
Minor code clean.
Added DAOs and Services for ConditionGroup, Sample, and Replicate
entities.
Added addCondition method in ExperimentViewModel