0.3b bump

GenerateAppimage.py

@@ -7,7 +7,7 @@ AppDir:
     id: chengdu.littlea.ourpaint
     name: OurPaint
     icon: application-x-executable
-    version: v0.2a
+    version: v0.3b
     exec: OurPaint
     exec_args: $@
   apt:

ourpaint.h

@@ -58,7 +58,7 @@ extern const char OUR_DESKTOP[];
 #define OUR_VERSION_MINOR 3
 #define OUR_VERSION_SUB 0
 
-#define OUR_PAINT_NAME_STRING "Our Paint v0.3"
+#define OUR_PAINT_NAME_STRING "Our Paint v0.3b"
 
 #define OUR_SIGNAL_PICK 1
 #define OUR_SIGNAL_MOVE 2