fpcalc: Fix FFmpeg SAMPLE_FMT_S16 version check

This change was introduced in avcodec.h version 52,94,1; see ffmpeg
commit 262d1c5d2206467809fd81d841d09ad70cc8ba13

Fixes build on Ubuntu 10.10 (libavcodec 0.6, avcodec.h version 52,72,2)
Update TagLib URL
Increment version number
Make sure to add Boost include directories for tests
Merge pull request #24 from radhermit/tests

Make sure to add Boost include directories for tests
Add .travis.yml
Build GTest from sources
Add support for reading files from stdin
Merge branch 'master' of https://github.com/lalinsky/chromaprint