The patch executer should not perform an implicit rollback

Current Situation

The patch executor performs an implicit rollback for the joc.war in the following situations

• The patch folder is empty
• The patch folder contains only files that do not match the naming convention

Desired Behavior

The patch executor should not perform implicit rollbacks. It should be neccessary to specify the rollback with the --rollback parameter. When the --rollback parameter is specified, the rollback will be performed instead of executing any patch file.

If the patch folder is empty and no --rollback parameter is specified a message "No patch file found" should be shown.

If the patch folder contains illegal patch files that do not match the naming conventions a message should be shown. "Illegal patch file found. Expected file name is patch_yyyymmdd_something_else.zip"