Disable gotoline keybinding.

Fixes #3.
reworked into a slimmer col setup
Merge pull request #6 from goinstant/ntassone/restyle

Moves the copy from the column to a header element.

Also slims the user list column to give the editor more horizontal space.
Merge pull request #4 from goinstant/byronm/3-remove-gotoline-binding

Disable gotoline keybinding.
fix editor resize bug
rename text to ot
Set editor with existing document contents.

We were setting the default text if on version 0, but need to also set whatever
the existing contents are if on a version greater than 0.