Add versioned so, .a, .dylib, .app

C.gitignore

@@ -3,12 +3,15 @@
 
 # Libraries
 *.lib
+*.a
 
 # Shared objects (inc. Windows DLLs)
 *.dll
 *.so
+*.so.*
+*.dylib
 
 # Executables
 *.exe
 *.out
-
+*.app