Read and Ord instances
Use real terminal window height on Unix when -h0 is passed

When -h0 is passed on the command line, determine the current terminal
window size in runGhcid and use it for output formatting.

Uses the terminal-size package and currently only works on POSIX
systems.
Remove unnecessary import
Only depend on terminal-size package if not on Windows
Merge pull request #16 from kaoskorobase/master

Determine terminal window height automatically on Unix
dos2unix
Add back a missing import (needed on Windows)
Whitespace only
Change terminalSize to return a Nothing
Update the changelog
Require the extra library
Docs and whitespace
Move and generalise terminalTopmost to the Platform module
Rename dropPrefix to dropPrefixRepeatedly
Rename the Platform module to Terminal, since that covers all it does
Fix up the test suite
Move the command line options out to Main
Name the test suite so it doesn't clash with Main and can be loaded into ghci
Change the .ghci file so it loads the test suite too
Switch over to extra properly