Add description information for buttons

git-svn-id: https://svn.code.sf.net/p/chan-sccp-b/code/trunk@4719 43c1dc8c-776e-4df2-8ef1-6e829299be21
Update conf/sccp.conf.annotated to use the information produced by gen_sccpconf sccp.conf.annotated ALL instead

git-svn-id: https://svn.code.sf.net/p/chan-sccp-b/code/trunk@4720 43c1dc8c-776e-4df2-8ef1-6e829299be21
Update/fix doxygen warnings

git-svn-id: https://svn.code.sf.net/p/chan-sccp-b/code/trunk@4721 43c1dc8c-776e-4df2-8ef1-6e829299be21