Login module

Signed-off-by: Jorge de Jesus Amador Figueroa <chullito999@gmail.com>
Finished the "client" management
updated client module for administration
Modified users table with unique id.
Merging with chuy's login
Merge branch 'master' of https://github.com/rastadrian/sqopi.git
Added user to customer persistence file
Merge branch 'master' of local repository into administrationmodule

Conflicts:
	src/main/java/com/sqopi/sqopi/controller/admin/AdministratorController.java
	src/main/java/com/sqopi/sqopi/service/AdministratorService.java
	src/main/resources/messages_en.properties