Fix bogus reads/writes of console log levels in asterisk.c

This patch updates the NUMLOGLEVELS define in logger.h to 32, to match the fact
that logger.c implements 32 log levels (because of the custom log level stuff).
asterisk.c uses this define to size an array of levels per remote console.

This array is modified in ast_console_toggle_loglevel(), which is called by the
"logger set level" CLI command.  While the documentation for the CLI command
doesn't make it terribly obvious, you can use this CLI command to toggle a
custom log level on a remote console, as well.  However, doing so led to an
invalid array index in asterisk.c.

This array is read from any time a log message is written to a console.  So, 
all custom log level messages resulted in a bogus read if a remote console
was connected.
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Merged revisions 359259 from http://svn.asterisk.org/svn/asterisk/branches/1.8
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Merged revisions 359260 from http://svn.asterisk.org/svn/asterisk/branches/10


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@359261 65c4cc65-6c06-0410-ace0-fbb531ad65f3