Bump version to 2.1.1, since we've been at 2.1.0 for 8.5 years. :)

There isn't going to be an official 2.1.1 (or 2.1.0) release; we'll let this
marinate a little and jump to 3.0!

CMakeLists.txt

@@ -12,7 +12,7 @@
 cmake_minimum_required(VERSION 2.8.4)
 
 project(PhysicsFS)
-set(PHYSFS_VERSION 2.1.0)
+set(PHYSFS_VERSION 2.1.1)
 
 # Increment this if/when we break backwards compatibility.
 set(PHYSFS_SOVERSION 1)

src/physfs.h

@@ -434,7 +434,7 @@ typedef struct PHYSFS_Version
 #ifndef DOXYGEN_SHOULD_IGNORE_THIS
 #define PHYSFS_VER_MAJOR 2
 #define PHYSFS_VER_MINOR 1
-#define PHYSFS_VER_PATCH 0
+#define PHYSFS_VER_PATCH 1
 #endif  /* DOXYGEN_SHOULD_IGNORE_THIS */