Merge with e190c52ab7861c68762aaa552f3dc0f59fe2e225 from default

This revision compiles and runs on Win7x64- but further evaluation is necessary.
There may be an issue with cmake step -After cmake I had to copy rtgui/version.h & config.h into out of source build /rtgui folder.
Additional notes:
- ImProcFunctions::hsv2rgb01   -> this likely need to be added to color.h & color.cc
- Use of array2D should be verified in NR code
- compilation warning for rtengine::RawImageSource::isWBProviderReady()

tools/generateReleaseInfo

@@ -0,0 +1,14 @@
+#!/usr/bin/env bash
+hgBranch="`hg branch`"
+hgLatesttag="`hg parents --template '{latesttag}'`"
+hgLatesttagdistance="`hg parents --template '{latesttagdistance}'`"
+hgChangeset="`hg parents --template '{node|short}'`"
+
+echo "set(HG_BRANCH $hgBranch)
+set(HG_VERSION $hgLatesttag.$hgLatesttagdistance)
+set(HG_CHANGESET $hgChangeset)
+set(HG_TAGDISTANCE $hgLatesttagdistance)
+if (CACHE_NAME_SUFFIX STREQUAL \"\")
+  set(CACHE_NAME_SUFFIX $hgLatesttag)
+endif()" > ReleaseInfo.cmake
+