Added a number of auxiliary Makefiles

- MakeScaler.RHEL7 to build the EPICS scaler module from source. We use a better one then the standard one.
- MakeAutoSave.RHEL7 to build  autosave from the PSI module system
- Modified the EL734Driver to set the MsgTxt to NULL when everything is happy

MakeAutoSave.RHEL7

@@ -0,0 +1,22 @@
+# This Makefile has to be  executed in the synApps-xxx/support/autosave-xxx directory.
+# It creates a autosave module to load into iocsh
+include /ioc/tools/driver.makefile
+
+MODULE=autosave
+
+BUILDCLASSES=Linux
+
+USR_DEPENDENCIES=
+
+SOURCES += asApp/src/dbrestore.c 
+SOURCES += asApp/src/save_restore.c 
+SOURCES += asApp/src/initHooks.c
+SOURCES += asApp/src/fGetDateStr.c 
+SOURCES += asApp/src/configMenuSub.c
+SOURCES += asApp/src/verify.c
+SOURCES += asApp/src/asVerify.c
+SOURCES += asApp/src/os/Linux/osdNfs.c
+
+HEADERS += asApp/src/os/Linux/osdNfs.h
+
+DBDS += asApp/src/asSupport.dbd