Fix a few typos and remove the "register" keyword.

git-svn-id: https://freertos.svn.sourceforge.net/svnroot/freertos/trunk@2004 1d2547de-c912-0410-9cb9-b8ca96c0e9e2
Convert double quotes in a command help string to single quotes to allow the string to be processed by Javascript.

git-svn-id: https://freertos.svn.sourceforge.net/svnroot/freertos/trunk@2005 1d2547de-c912-0410-9cb9-b8ca96c0e9e2
Merge remote-tracking branch 'trunk'