allow slider and dropdown menu widgets as commands


git-svn-id: svn://svn.code.sf.net/p/fhem/code@4985 2b470e98-0d58-463d-a4d8-8e2adae1ed80
git-svn-id: svn://svn.code.sf.net/p/fhem/code@4986 2b470e98-0d58-463d-a4d8-8e2adae1ed80
git-svn-id: svn://svn.code.sf.net/p/fhem/code@4987 2b470e98-0d58-463d-a4d8-8e2adae1ed80
git-svn-id: svn://svn.code.sf.net/p/fhem/code@4988 2b470e98-0d58-463d-a4d8-8e2adae1ed80
agian valvePos, some minors

git-svn-id: svn://svn.code.sf.net/p/fhem/code@4989 2b470e98-0d58-463d-a4d8-8e2adae1ed80