10_CUL_HM.pm: change RT battarty state detection

git-svn-id: svn://svn.code.sf.net/p/fhem/code/trunk@6625 2b470e98-0d58-463d-a4d8-8e2adae1ed80
feature: RAM and SWAP Readings on OSX

git-svn-id: svn://svn.code.sf.net/p/fhem/code/trunk@6626 2b470e98-0d58-463d-a4d8-8e2adae1ed80
SYSMON: RAM and SWAP Readings on OSX

git-svn-id: svn://svn.code.sf.net/p/fhem/code/trunk@6627 2b470e98-0d58-463d-a4d8-8e2adae1ed80