Numerous minor updates and fixes for The Manual:

- Link Scripting Overview into the TCL Primer; both need more work.
- Remove redundant OpenOCD from Scripting Overview subpage title.
- Fix incorrect tag in Doxygen style guide example.
- Fix minor typo in first introductory paragraph of main page.


git-svn-id: svn://svn.berlios.de/openocd/trunk@1932 b42882b7-edfa-0310-969c-e2dbd0fdcd60