Schema validations and fixes (#67):
* EntrantExportRecord shouldn't be an entity because it hasn't a real db table -> schema validation fails
* fix semester id column definition
* fix column definition of confirmation code in the User entity
* add schema fix sql: types of columns and types corrections
GivenPoint shouldn't be an entity (#67), turn on schema validation in the persistence configurations
Update db schema file so the schema validation will work
Rename UserNameReminder to CredentialsReminder and implement lost password recovery in the web layer (#45)
Add lost password mail strings (#45)
Assemble lost password mail with dummy link (#45)
Refactor: create a new bean for the account management (kinda #45)
* create user
* account confirmation
* changing the password
* user name reminder
* lost password recovery
Add new entity: LostPasswordToken (#45)
Send lost password token (#45)

It replaces the existing token or creates a new one and send the link in email.
Extract set password form to a new abstract panel component
Get support url and id from configuration

Remove unused logger from PekPage.
Add a method which creates a parametrized wicket error message so we can use it everywhere.

Simplifies the usage of our cool parametrized PekEJBException and it can be extended with more parameters.
Fix LostPasswordToken entity (#45)
* user doesn't need to be EAGER
* fix screwed up value of TemporalType
Finalize lost password token lookup and password changing business logic (#45)
* the token is valid for 24 hours
* the token removed after use
* logging
* add new error codes
Finalize lost password changing in the web layer (#45)
* add new page which uses the common NewPasswordFormPanel
* mount page to an own path
* localization
Fix headerlabel bug on the confirm page (related commit 5bc98b0f3)
Minor comment cleanup
Fix our Configuration reader
* replace with java.util.logging with slf4j
* use try-with-resources syntax to read the file
* add configuration dump on debug level
Fix surefire plugin system property configuration
* replaced deprecated config with the new one
* add application resource dir option
Fix the domain and path of 'korok' and 'profile' in SystemManagerBean
Make Log entity immutable