Change the type used for strings and single characters from signed char to just char.

git-svn-id: https://svn.code.sf.net/p/freertos/code/trunk@2142 1d2547de-c912-0410-9cb9-b8ca96c0e9e2
Start to remove unnecessary 'signed char *' casts from strings that are now just plain char * types.

git-svn-id: https://svn.code.sf.net/p/freertos/code/trunk@2143 1d2547de-c912-0410-9cb9-b8ca96c0e9e2
Continue to remove unnecessary 'signed char *' casts from strings that are now just plain char * types.

git-svn-id: https://svn.code.sf.net/p/freertos/code/trunk@2144 1d2547de-c912-0410-9cb9-b8ca96c0e9e2
Remove unnecessary 'signed char *' casts from strings that are now just plain char * types in the FreeRTOS-Plus directory.

git-svn-id: https://svn.code.sf.net/p/freertos/code/trunk@2145 1d2547de-c912-0410-9cb9-b8ca96c0e9e2
Change 'signed char *pcTaskName) to 'char *pcTaskName' in vApplicationStackOverflowHook().

git-svn-id: https://svn.code.sf.net/p/freertos/code/trunk@2146 1d2547de-c912-0410-9cb9-b8ca96c0e9e2
Merge remote-tracking branch 'trunk'

Lovely cleanup !