COMP: update lnInclude directories when building (issue #364)

- Could be related to interrupted builds.
  So if there are any parts of the build that rely on an explicit
  'wmakeLnInclude', make sure that the contents are properly updated.

--

ENH: improved feedback from top-level Allwmake

- Report which section (libraries, applications) is being built.

- Provide final summary of date, version, etc, which can be helpful
  for later diagnosis or record keeping.

- The -log=XXX option for Allwmake now accepts a directory name
  and automatically appends an appropriate log name.
  Eg,
      ./Allwmake -log=logs/  ->> logs/log.linux64GccDPInt32Opt

  The default name is built from the value of WM_OPTIONS.

--

BUG: shell not exiting properly in combination with -log option

- the use of 'tee' causes the shell to hang around.
  Added an explicit exit to catch this.

--

- Detecting the '-k' (-non-stop) option at the top-level Allwmake, which
  may improve robustness.

- Explicit continue-on-error for foamyMesh (as optional component)

- unify format of script messages for better readability

COMP: reduce warnings when building Pstream (old-style casts in openmpi)

applications/utilities/postProcessing/graphics/PVReaders/Allwclean

@@ -1,6 +1,5 @@
 #!/bin/sh
 cd ${0%/*} || exit 1    # Run from this directory
-#set -x
 
 wclean libso vtkPVReaders
 PVblockMeshReader/Allwclean

applications/utilities/postProcessing/graphics/PVReaders/Allwmake

@@ -8,31 +8,25 @@ export WM_CONTINUE_ON_ERROR=true
 . $WM_PROJECT_DIR/wmake/scripts/AllwmakeParseArguments
 
 #
-# There are several prerequisites for building a plugin
+# There are several prerequisites for building plugins
 #
 #set -x
 canBuildPlugin()
 {
     [ -d "$ParaView_DIR" -a -r "$ParaView_DIR" ] || {
-        echo
-        echo "WARNING: cannot build ParaView plugin(s) without paraview directory"
+        echo "==> cannot build ParaView plugins without paraview directory"
         echo "    ParaView_DIR=$ParaView_DIR"
-        echo
         return 1
     }
 
     [ -n "$PV_PLUGIN_PATH" ] || {
-        echo
-        echo "${PWD##*/} : invalid PV_PLUGIN_PATH for building ParaView plugin(s)"
+        echo "==> ${PWD##*/} : invalid PV_PLUGIN_PATH for building ParaView plugins"
         echo "    PV_PLUGIN_PATH=${PV_PLUGIN_PATH:-unset}"
-        echo
         return 1
     }
 
     type cmake > /dev/null 2>&1 || {
-        echo
-        echo "WARNING: cannot build ParaView plugin(s) without cmake"
-        echo
+        echo "==> cannot build ParaView plugins without cmake"
         return 1
     }
 
@@ -62,10 +56,8 @@ case "$major" in
     fi
     ;;
 *)
-    echo
-    echo "NOTE: skipping build of ParaView plugin(s)"
+    echo "==> skip build of ParaView plugins"
     echo "    include directory was for paraview major version '${major:-none}'"
-    echo
     ;;
 esac