Move TCL overview from source tree to doxygen manual.

git-svn-id: svn://svn.berlios.de/openocd/trunk@1855 b42882b7-edfa-0310-969c-e2dbd0fdcd60

src/tcl/README_ABOUT_TCL.txt → doc/manual/primer/tcl.txt

+/** @page primertcl OpenOCD TCL Primer
+
+@verbatim
+
 ****************************************
 ****************************************
 
@@ -428,3 +432,7 @@ END of the Tcl Intro and Walk Through
 FUTURE PLANS
 
        Some "GPIO" functions...
+
+@endverbatim
+
+ */