cleanup transferChannels.transfer* during the hangup process

git-svn-id: https://svn.code.sf.net/p/chan-sccp-b/code/trunk@4188 43c1dc8c-776e-4df2-8ef1-6e829299be21
Fix two small spelling mistakes

git-svn-id: https://svn.code.sf.net/p/chan-sccp-b/code/trunk@4189 43c1dc8c-776e-4df2-8ef1-6e829299be21