v1.16.0: Handle TTY corner cases

When twin suddenly cannot access the TTY any more, it will now signal
the main app.

In the case of moar, moar will react by shutting down when this happens.

Run with --debug to identify this happening.

v1.15.4: Don't crash on failed screen setup

Instead, just pump our input to stdout.

v1.15.3

Make tests pass on 32 bit platforms

v1.15.2: Compatibility with atuin

Fixes #138.

v1.15.1: Make --quit-if-one-screen instant

Before this change, there was a very obvious flashing of pager contents
when running with `--quit-if-one-screen`, even when input handling was
fast.

With this release, moar will exit as soon as file reading and
highlighting is done, providing a much nicer experience in the common
case.

v1.15.0: Support not paging short inputs

This release adds a --quit-if-one-screen command line flag. Given this
flag and some input that fits on screen, moar will exit immediately and
print the input to stdout.

v1.14.0: Add support for terminal hyperlinks

As described here:
https://gist.github.com/egmontkob/eb114294efbcd5adb1944c9f3cb5feda

Fixes #131 and #133.

v1.13.0: Configurable side scroll amount

Using the new `--shift` command line flag, or by holding down ALT while
pressing the left / right arrow keys to move one column at a time.

v1.12.0: Display Private Use Unicode characters

Before this release, we rendered those as highlighted question marks.

With this release, we just send them to the screen for displaying.

The reason for this change is that Font Awesome uses Private
Use Unicode characters for symbols, this one for example:
https://fontawesome.com/v4/icon/battery-empty

More reading: https://en.wikipedia.org/wiki/Private_Use_Areas

Also, with this release, you can press 'q' to exit Go-to-line mode.

v1.11.4

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