Update kitchen config
Test on CentOS
Use updated pocketsphinx which can actually be downloaded
Use a version of Pocketsphinx models which can be downloaded
Ensure correct dependencies get installed
Claim support for CentOS
Changelog entries
Remove unused attributes
More memory for compilation in test-kitchen
Add back requirements for debian build
Bump to 0.2.0
Add checksum for pocketsphinx model

I'm experiencing errors downloading it, but others are not.
Merge branch 'release/0.2.0'