Fixes #614- issue with modal position interfering with some common css rules. Fixes issue with cache being cleared on each show

src/modules/modal.js

@@ -243,7 +243,9 @@ $.fn.modal = function(parameters) {
             : function(){}
           ;
           if( !module.is.active() ) {
-            module.cacheSizes();
+            if(module.cache === undefined) {
+              module.cacheSizes();
+            }
             module.set.position();
             module.set.screenHeight();
             module.set.type();
@@ -519,6 +521,7 @@ $.fn.modal = function(parameters) {
         },
 
         setting: function(name, value) {
+          module.debug('Changing setting', name, value);
           if( $.isPlainObject(name) ) {
             $.extend(true, settings, name);
           }