Set version to 1.0.4

Author: legleux

src/main/impl/Build.cpp

@@ -31,7 +31,7 @@ namespace Build {
 //  and follow the format described at http://semver.org/
 //------------------------------------------------------------------------------
 // clang-format off
-char const* const versionString = "1.0.4-rc2"
+char const* const versionString = "1.0.4"
     // clang-format on
 
     "+"