Correct build of helper function for ports where the stack grows up.

git-svn-id: https://svn.code.sf.net/p/freertos/code/trunk@2094 1d2547de-c912-0410-9cb9-b8ca96c0e9e2
Reorder the license text wording so the exception text is at the top rather than the bottom.

git-svn-id: https://svn.code.sf.net/p/freertos/code/trunk@2095 1d2547de-c912-0410-9cb9-b8ca96c0e9e2
Merge remote-tracking branch 'trunk'