jira-integration: Reload order after JIRA synchronization

This allows user to change to WBS tab and see the imported tasks just after
import the issues from JIRA.

FEA: ItEr77S16JiraAndTimConnectorContributionIntegration
jira-integration: Hide JIRA part in project edition if not activated

If JIRA is not activated the part to do the synchronization with the server in
the project edition shouldn't be visible.

FEA: ItEr77S16JiraAndTimConnectorContributionIntegration
jira-integration: Fix minor visual stuff in JIRA part inside project edition

FEA: ItEr77S16JiraAndTimConnectorContributionIntegration
jira-integration: Fix issue in _jiraSyncInfo that was using args instead of arg

This was causing that the messages to show or not depending on the success
operation were not working properly.

Moreover, it has been updated the messages to give more information to the user.

FEA: ItEr77S16JiraAndTimConnectorContributionIntegration