Make CHECK_BLOCKING() debug message more useful.

Change the displayed pthread value to hex format so it can be easily
matched with CLI core show threads or gdb.
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Merged revisions 380611 from http://svn.asterisk.org/svn/asterisk/branches/1.8
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Merged revisions 380612 from http://svn.asterisk.org/svn/asterisk/branches/11


git-svn-id: http://svn.asterisk.org/svn/asterisk/trunk@380613 f38db490-d61c-443f-a65b-d21fe96a405b
Add ignore properties to channels/iax2

git-svn-id: http://svn.asterisk.org/svn/asterisk/trunk@380614 f38db490-d61c-443f-a65b-d21fe96a405b