Made a start to use AUTO_RELEASE in sccp_actions.c

git-svn-id: https://svn.code.sf.net/p/chan-sccp-b/code/trunk@5426 43c1dc8c-776e-4df2-8ef1-6e829299be21
Removed Experimental Status from the New Hangup Code, making it the standard method to handle hanging up calls for everyone

git-svn-id: https://svn.code.sf.net/p/chan-sccp-b/code/trunk@5427 43c1dc8c-776e-4df2-8ef1-6e829299be21
Fix warning about unused variable: 'channel'

git-svn-id: https://svn.code.sf.net/p/chan-sccp-b/code/trunk@5428 43c1dc8c-776e-4df2-8ef1-6e829299be21
Fix compile warning about overwriting description in AST_MODULE_INFO

git-svn-id: https://svn.code.sf.net/p/chan-sccp-b/code/trunk@5429 43c1dc8c-776e-4df2-8ef1-6e829299be21