update version number to 0.20

sanitize HTML output, fixing https://github.com/davidflanagan/CoverMonkey/issues/7

fix bug in addCounts() so that CoverMonkey can work with multiple concatenated batches of -D output

edit the README

add the pre-assembled script to the repo so you do not have to type make

update to support the new -D output format.

track interpreter counts and method jit counts separately, find the maximum counts for each linear block of instructions, and display jit percentage for each line

more linenumber stuff

ignore nop opcodes

0-based line numbers

ignore null scripts

bug fix

deal with new lines appearing when new dumps

change line data to a sparse array indexed by line number, add line number argument to onLineUpdate callback

Merge pull request #6 from neonux/master