tim-connector: check if connector values are invalid and more

Better error handling:
* check if connector connection values are valid
* New ConnectorException
* New .zul file to show import/export failed/success information
* All files modified affected by these changes
Jira-connector: JIRA moved to connectors

- JIRA is moved to connectors and all files modified that has to do with this change.
- JiraConfiguration file is removed
- ImportedLabel attribute is deleted from Order and order.hbm.xml
- Imstead of importedLabel is now used the key from OrderSyncInfo
- and some more changes where applicable
Fix translation markers for ConnectorException and TimImpExpInfo classes

FEA: ItEr77S16JiraAndTimConnectorContributionIntegration