Merge branch '2.1' of https://github.com/Ultimaker/Cura into 2.1

CMakeLists.txt

@@ -44,7 +44,7 @@ if(NOT ${URANIUM_SCRIPTS_DIR} STREQUAL "")
             file(GLOB po_files ${CMAKE_SOURCE_DIR}/resources/i18n/${lang}/*.po)
             foreach(po_file ${po_files})
                 string(REGEX REPLACE ".*/(.*).po" "${CMAKE_BINARY_DIR}/resources/i18n/${lang}/LC_MESSAGES/\\1.mo" mo_file ${po_file})
-                add_custom_command(TARGET translations POST_BUILD COMMAND mkdir ARGS -p ${CMAKE_BINARY_DIR}/resources/i18n/${lang}/LC_MESSAGES/ COMMAND ${GETTEXT_MSGFMT_EXECUTABLE} ARGS ${po_file} -o ${mo_file})
+                add_custom_command(TARGET translations POST_BUILD COMMAND mkdir ARGS -p ${CMAKE_BINARY_DIR}/resources/i18n/${lang}/LC_MESSAGES/ COMMAND ${GETTEXT_MSGFMT_EXECUTABLE} ARGS ${po_file} -o ${mo_file} -f)
             endforeach()
         endforeach()
         install(DIRECTORY ${CMAKE_BINARY_DIR}/resources DESTINATION ${CMAKE_INSTALL_DATADIR}/cura)