Generic "this->" fix.
-lpthread added for linux makefiles.
Pointer cast corrected...
pthread library added to codeblocks project (es_linux_editor).
Missing files added to codeblocks project (es_linux_editor).
tmp fix: Defines added to makefile and codeblocks project to use the included  BDF font by default on linux (es_linux_editor). - Runs now fine again under linux (Arch/Manjaro), yop!