Update language labels to recognize live script

Author: eszmw

.gitattributes

@@ -5,22 +5,20 @@
 *.mexa64 binary
 *.mexw64 binary
 *.mexmaci64 binary
-*.mlapp binary
+*.mlapp binary linguist-language=MATLAB
 *.mldatx binary
 *.mlproj binary
-*.mlx binary
+*.mlx binary merge=mlAutoMerge linguist-language=MATLAB
 *.p binary
 *.sfx binary
 *.sldd binary
 *.slreqx binary merge=mlAutoMerge
 *.slmx binary merge=mlAutoMerge
 *.sltx binary
 *.slxc binary
-*.slx binary merge=mlAutoMerge
-*.mlx binary merge=mlAutoMerge
+*.slx binary merge=mlAutoMerge linguist-language=Simulink
 *.slxp binary
 
-
 ## Other common binary file types
 *.docx binary
 *.exe binary