Fix GH-3: Wrap tests when they extend past line

This makes the checkmarks wrap on to another line when there are so many
tests per file that the checkmarks would start hitting the progress bar.
Remove EtaLogger
Fine-grained progressbar using more Unicode block chars
Merge remote-tracking branch 'origin/fix-gh-3'
Merge remote-tracking branch 'origin/strip_out_etalogger'
Fix PEP8 import order
Replace TerminalColors class with TERMINAL_COLORS
Replace Instafail with Sugar name
Fix PEP8
Change description
Add progress bar constants
Remove excess lines
Update version to 0.3.0