Deal with highlight lines before lines filter.

Move lines highlight code block before lines filter code block, so that
when lines and highlight lines are both provided the highlight line
numbers are still based on actual code lines(not lines filtered).
Merge pull request #20 from microdog/highlight_actual_lines

Dealing with highlight lines before filtering lines.
Version bump to 1.7
Update README with 1.7
Merge pull request #1 from blairvanderhoof/master

Merge blairvanderhoof:master.