See http://discuss.codemirror.net/t/my-users-are-having-an-intermittent-issue-that-i-cant-reproduce/126

Also clean up style a bit. `perl.js` is oddly spaced!

Closes #3024

See http://discuss.codemirror.net/t/simple-mode-and-anchored-regexp/88/4

(Blint is the in-tree tool factored into its own npm package.)

Closes #3028

Issue #3023

They aren't faster, and don't work on pseudo-arrays.

Issue #3015

Issue #3019

Issue #3017

See http://discuss.codemirror.net/t/jittering-mousewheel-scrolling-with-merge-addon-align-mode/125

To fix this I had to introduce new state parameter that tells if
cursor is before colon or not.

https://github.com/codemirror/CodeMirror/issues/3012

https://github.com/codemirror/CodeMirror/issues/3012

Fixes bug #2156 for the most part

indention was bugged because it was reaching a wrong state when
any text that was not in the known set of words or patterns was
incurred.

for eg:
	head
		| <---- cursor should be here

and lets take  color : red as another example
now 'red' is same to the current tokenizer as 'head' from the first
example. So it indents for red automatically.

It was fixed by not letting any text after colon to reach the state
where it appends an indent after it.

Issue #3009

Issue #3009

To work around a layout quirk in Firefox

Issue #3009