v3

This release fixes bugs, improves the code base and introduces metadata templates. The README has been updated with relevant information.

0ba1ce4 add metadata template documentation
e2a21d2 remove unnecessary "_hz" suffix to media attribute
d661012 update package version to v3
1bfb97b expose multiple media attributes to metadata templates
975587e add support for metadata templates
267f489 refactoring. close #1
8fb7de1 add gitignore
678859c uniformly distributed captures over time
ff02b24 fix text wrap size calculation
bea006c add license badge
8f38269 fix typo, it's nosexcover
5370e47 add code coverage with coveralls
39b0a8e Fix metadata line height so that it depends only on the font size Previously the line height depended on the computed text height. This could lead to different line heights for the same font size depending on the letters that appeared in the filename.
9f9d753 add travis CI status image
1ff9022 save size_bytes as attribute
05ee1c4 add Travis CI configuration file
e76814a add mediainfo tests
ac49cd4 update examples with latest features