Allow higher frame rates by using a new approach for framebufferUpdate requests

    * changed the type of the input field (which is used for bringing up the
      on-screen keyboards on touch devices) from email to text
    * when typing in an input field of type email the user is not allowed to
      write parentheses on iOS devices, the keys are disabled.
    * tested on iOS 6, iOS 7 and Android 4.3.

Enables local cursor by default

The https check should come first.

Autoconnect option as URL query

Fixes the onscreen keyboard in Chrome on Android

A similar change was made to ui.js in #252.

* Added a few clarifying comments.

Rfb js fixes

We create timeouts, not intervals. Then we need to clear them with
clearTimeout.

Fix to onMouseDisable

Allow for double taps to trigger double clicks even if the second touch is a slight bit off

Fixed so that viewportDrag works even if no mouse button is selected.

framebufferUpdate request at a time.

Improved use of screen real estate

Display the desktop name in the document title

  button group instead of centered.
* On low resolution devices the padding towards the edges of the screen of
  the left and right button groups are now removed.
* Since the status_bar was merged into the control-bar the actual status_bar
  element became redundant and was therefor removed.
* Improved the style of the control-bar when there is an error or a warning.
* Implemented a fix so that vnc_auto.html works as intended with the improved
  screen real estate patch.

* The trigger distance now takes devicePixelRatio into account.

Also added a popup with the status text.

to make double clicking on touch devices easier a double click is now triggered when two mouse clicks occur within 500 milli seconds and closer than 50 pixels together

Re-fix pull req #245:

* Must declare port variable.

* Must look for https first, then http.

Detect port properly in vnc_auto.html when used on port 80 or 443.