Fixed issue where negative priorities werent allowed (Thanks to Patrick Reinhardt for finding and fixing this issue).

git-svn-id: svn://svn.code.sf.net/p/fhem/code/trunk@4582 2b470e98-0d58-463d-a4d8-8e2adae1ed80
Added attribute for sending the timestamp to the pushover api.

git-svn-id: svn://svn.code.sf.net/p/fhem/code/trunk@4583 2b470e98-0d58-463d-a4d8-8e2adae1ed80
fhem.html: fixing forum links


git-svn-id: svn://svn.code.sf.net/p/fhem/code/trunk@4584 2b470e98-0d58-463d-a4d8-8e2adae1ed80
FHEMWEB: adding floorplan specific iconPath


git-svn-id: svn://svn.code.sf.net/p/fhem/code/trunk@4585 2b470e98-0d58-463d-a4d8-8e2adae1ed80
FHEMWEB: check non-existing iconPath only once


git-svn-id: svn://svn.code.sf.net/p/fhem/code/trunk@4586 2b470e98-0d58-463d-a4d8-8e2adae1ed80
remove temp files


git-svn-id: svn://svn.code.sf.net/p/fhem/code/trunk@4587 2b470e98-0d58-463d-a4d8-8e2adae1ed80