make clear distinction between support and ioc apps

src/makeBaseApp/top/exampleBoot/ioc/Makefile@Common

@@ -1,4 +1,4 @@
 TOP = ../..
 include $(TOP)/configure/CONFIG
-ARCH = _ARCH_
+#nothing to do
 include $(TOP)/configure/RULES.ioc

src/makeBaseApp/top/exampleBoot/ioc/st.cmd@Common

@@ -1,8 +1,8 @@
 #!../../bin/_ARCH_/_APPNAME_
 ## The names of the binary above and .dbd file below will be incorrect
 ## unless you used the same names for the ioc and the app directory.
+# create and register all record/device/driver/registrar support
 dbLoadDatabase("../../dbd/_APPNAME_.dbd",0,0)
-
 registerRecordDeviceDriver(pdbbase)
 
 dbLoadRecords("../../db/dbExample1.db","user=_USER_Host")

src/makeBaseApp/top/exampleBoot/ioc/st.cmd@RTEMS

@@ -1,3 +1,7 @@
+# Simple startup script
+
+# You may have to change _APPNAME_ to something else
+# everywhere it appears in this file
 dbLoadDatabase("dbd/_APPNAME_.dbd",0,0)
 registerRecordDeviceDriver(pdbbase) 
 dbLoadRecords("db/dbExample1.db","user=_USER_")

src/makeBaseApp/top/exampleBoot/ioc/st.cmd@vxWorks

@@ -8,6 +8,9 @@
 #< ../nfsCommands
 
 cd topbin
+# You may have to change _APPNAME_ to something else
+# everywhere it appears in this file
+
 ld < _APPNAME_.munch
 
 #The following uses drvTS for vxWorks. May be needed for hardware event systems