3.5: Fix :HighlightCoverageForAll when .coverage is not in $PWD

• Pay attention to &wrapscan (GH: #27)
• Avoid hit-enter prompt when &cmdheight is 1 (GH: #28)
• Document :ToggleCoverage in the README (GH: #29)
• Fix :HighlightCoverageForAll so it can find the files when the .coverage file is not in the current working directory

3.4

• Coverage sign customization, by setting g:coverage_sign, g:coverage_sign_branch, g:coverage_sign_branch_target variables.

3.3: Got confused by 'TOTAL ...'

• Fix for parsing coverage >= 5.4 output (#19, #20).

3.2: Improve error message when coverage script is not found

• Different gutter sign appearance (contributed by Stefan Scherfke, #17).
• Clearer error message when coverage script cannot be found (#18).
• Uses v:echospace (available since Vim 8.1.1913) to determine the available space for messages instead of guessing

3.1: Relative g:coverage_script

• Allow g:coverage_script to be a relative path (e.g. .tox/coverage/bin/coverage)

3.0.1: Create LICENSE

Added a LICENSE file.

3.0: Highlight missing branch coverage targets

The plugin now highlights missing branch coverage targets when you move the cursor over a line with missing branch coverage.