Additional precautions to keep windows from appearing in screenshots.

main.cpp

     // Clean up global classes.
     delete xengine;
     delete options;
+    // Sleep for 0.05 seconds to ensure everything was cleaned up. (Without this, slop's window often shows up in screenshots.)
+    usleep( 50000 );
     // If we canceled the selection, return error.
     if ( state == -1 ) {
         return 1;

options.cpp

 slop::Options* options = new slop::Options();
 
 slop::Options::Options() {
-    m_version = "v2.1.2";
+    m_version = "v2.1.3";
     m_highlight = false;
     m_borderSize = 10;
     m_padding = 0;