Closes #446

Closes #449

Issue #445

I've differentiated between control-structury things and builtins. While there
is rarely a true difference in these things because of the way Clojure works,
it makes sense to highlight them differently. All of the desktop editors make similar
decisions with their Clojure lexers. My reason for doing it is that it allows
for more complex highlighting. I'm not sure if all of the things in the keyword
list make sense there, but they do at a glance. I'll look more closely when I
get to using this and send another pull request with any tweaks.

Clojure's keywords (like :foo) were being highlighted as tags. That doesn't make sense and is
inconsistent with, for example, the Ruby mode. You don't want to highlight tags
the same as keywords in some cases because you can end up with pretty keywords
and hideous HTML tags. I've switched those to be highlighted as atoms as per
the Ruby mode.

A few of the indent words were not being detected because they were being
concatenated without trailing spaces. I fixed that.

Passing local will return coordinates inside the edited document.

Closes #435

Conditionalizes the hack that stops dragging when the button is released
for IE.

Closes #433

Issue #432

Closes #431

This prevents false positives like Shift-Insert

Closes #434

Otherwise, you'd get a cursor/text misalignment in some fonts.

Closes #427

Standardize theme, add links to front page and compression helper.

It wasn't being properly respected anyway.

Use dummy image instead of default browsers image. Default is mighty ugly the way CodeMirror is now.

To prevent a border from showing up during dragging.

Issue #420

Signed-off-by: Thaddee Tyl <thaddee.tyl@gmail.com>

Closes #416