VD bat low and critical, expert hash bug remove

git-svn-id: https://fhem.svn.sourceforge.net/svnroot/fhem/trunk/fhem@2622 2b470e98-0d58-463d-a4d8-8e2adae1ed80
MAX: ignore desiredTemperature = 0

git-svn-id: https://fhem.svn.sourceforge.net/svnroot/fhem/trunk/fhem@2623 2b470e98-0d58-463d-a4d8-8e2adae1ed80
new module 73_PRESENCE.pm for presence detection of mobile phones or other devices via Ping or Bluetooth detection


git-svn-id: https://fhem.svn.sourceforge.net/svnroot/fhem/trunk/fhem@2624 2b470e98-0d58-463d-a4d8-8e2adae1ed80
the copy&paste troll saw me this morning: fixing module description


git-svn-id: https://fhem.svn.sourceforge.net/svnroot/fhem/trunk/fhem@2625 2b470e98-0d58-463d-a4d8-8e2adae1ed80
added new features and basicauth to 49_IPCAM.pm, added basicauth support to HttpUtils.pm


git-svn-id: https://fhem.svn.sourceforge.net/svnroot/fhem/trunk/fhem@2626 2b470e98-0d58-463d-a4d8-8e2adae1ed80