progress indicators, bug fixes, after a while

public/assets/vendors/Flot/docs/browser.md

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+## jquery.flot.browser.js
+
+This plugin is used to make available some browser-related utility functions.
+
+### Methods
+
+
+- getPageXY(e)
+
+ Calculates the pageX and pageY using the screenX, screenY properties of the event
+ and the scrolling of the page. This is needed because the pageX and pageY
+ properties of the event are not correct while running tests in Edge. 
+
+- getPixelRatio(context)
+
+ This function returns the current pixel ratio defined by the product of desktop
+ zoom and page zoom.
+ Additional info: https://www.html5rocks.com/en/tutorials/canvas/hidpi/
+
+
+- isSafari, isMobileSafari, isOpera, isFirefox, isIE, isEdge, isChrome, isBlink
+
+ This is a collection of functions, used to check if the code is running in a
+ particular browser or Javascript engine.