update gitignore

.gitignore

@@ -1,23 +1,13 @@
 # Compiled Object files
-*.slo
-*.lo
 *.o
 *.obj
 
-# Precompiled Headers
-*.gch
-*.pch
-
 # Compiled Dynamic libraries
 *.so
 *.dylib
 *.dll
 
-# Fortran module files
-*.mod
-
 # Compiled Static libraries
-*.lai
 *.la
 *.a
 *.lib
@@ -41,6 +31,11 @@ Release/
 # CMake Rubbish
 build/
 cmake-build-*/
+xcode/
+
+# OS Rubbish
+.DS_Store
+Thumbs.db
 
 # Some files I used for testing
 *.tmx