Some more updates on methods at 'Extras' tab
Updates after Seb's feedback
Compiles on mobile, but a 'registration error' window pops up in the beginning
Updated some signatures so as to compile on Linux
Still does not compile on Linux
Updated MCS_resolvepath() signature so as to compile on Linux
Now it compiles on Linux
Updates on lnxans.cpp
Fixed bug in Linux (the one that no title appeared in the window generated by the test script
Merge branch 'refactor-syntax_unicode_extras5' into refactor-syntax_unicode_answer

Conflicts:
	engine/src/lnxans.cpp
	engine/src/mode_development.cpp
	engine/src/mode_installer.cpp
	engine/src/mode_server.cpp
	engine/src/mode_standalone.cpp
	engine/src/osxans.mm
	engine/src/osxansold.cpp
	engine/src/w32ans.cpp

Fixed bug on MCA_color which made the color picker useless - always returning 0,0,0
Reverted changes to mbldialog.cpp as the file is utterly commented out