Lizard-ui

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- Styled the login form including proper "enter" behaviour and
first-field-gets-focus handling.

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- Moved some css styling from lizard-map to lizard-ui.

- Added initial login support + forms. You need to add lizard-ui's urls.py to
yours if you want to use it.

- Better drag/drop visual feedback.

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- Javascript syntax fix: added two semicolons and removed another.

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- Make "replace-with-image" clickable by using "data-href-click"
property.

- Add ol.forms css.

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- Image replacement looks at "use-my-size" class instead of
use-my-width/height.

- Added javascript "printPage()" function that prints a webpage that at least
doesn't flow over the right hand side of the physical paper page. Printing
uses a combination of a custom print stylesheet and blueprint's print
stylesheet. Printing definitively isn't perfect yet, but at least usable.
Note: you should refresh or resize the page after printing to get the full
width again.

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- Added generic automatic image resizing (replacing a generic "a href" with an
image with the same src as the href and then figuring out the height/width
and passing that along as a GET parameter and as attributes on the img tag.

- Fixed resize timer by having a global variable for it.

- Calculating hiddenStuffHeight (currently: only the date popup hidden div)
only once: before the date popup has been opened.. Fixes the bug that you'd
get a large empty space at the bottom of the screen.