various improvements

- use dig for resolving host names
- ascon.c: fix terminator parsing
- property callback: change property before callback
- logger.c:default for logger period must be the old value instead of 1
- add frappy type history writing
- increase max. logreader line length
- HIPNONE returns "null" with json protocol
- encode strings properly in formatNameValue
- fix memory leak in json2tcl
- scriptcontext: do not show debug messages when script starts with underscore or when the "send" property is empty
- scriptcontext: remove args for action timestamp
- scriptcontext: "que" function will replace an already queued action, e.g. for 'halt
- introduced updatestatus script

makefile_rhel7

@@ -34,6 +34,11 @@ LIBS =    -L$(EXTRAROOT)/lib -L$(EXTRAROOT)/lib $(SUBLIBS) $(NILIB) $(EPICSLIBS)
        -ltcl -lNeXus /usr/lib64/libhdf5.so    \
        $(EXTRAROOT)/lib/libjson-c.a \
        -ldl -lz -lmxml $(EXTRAROOT)/lib/libghttp.a -lm  -lc -lpthread -lsqlite3 -lbson-1.0 -lmongoc-1.0
+SEASUBLIBS = $(SICSROOT)/sicspsi/libseapsi.a 
+SEALIBS =    -L$(EXTRAROOT)/lib -L$(EXTRAROOT)/lib $(SEASUBLIBS) \
+       -ltcl \
+       $(EXTRAROOT)/lib/libjson-c.a \
+       -ldl -lz -lm  -lc -lpthread
 
 include make_gen