Fix URL navigation and text alignment issues in inlineEditor.
inlineEditor's dragged text detection on <a href="..."/> elements would

fail to prevent the default action of navigating to the page after

opening the editor. The mouseup was too late to block this. To fix this

properly, we now register a click event that directly opens the editor

and prevents the default action.
There were also issues with sizing the editor on elements with a custom

text-align property. It wasn't able to find the ideal bounds for the

editor, and would result in a pretty small text field just big enough

for the original text. It now works around this by setting the

text-align property of the parent to left while doing the calcuations,

restoring it afterward.

Tested with a change I have in progress that was affected by both of these

bugs.