Fixing mix project file
Merge pull request #3 from khia/fix/update_mixfile

Fixing mix project file
Update properex to work with latest elixir
Add expm package.exs
Update properex
Minor source code improvements
Minor source code improvement
Count failed properties
Implement 'is_property' and 'produce'
Suppress output from proper
Merge pull request #4 from khia/extensions

Extensions
versioning infos conforming to mix and elixir 0.10.0
Merge pull request #5 from alfert/mix-0.10.0

versioning infos conforming to mix and elixir 0.10.0
Use github key as a source for proper
Upgrade to Elixir 0.12.0
Create LICENSE
Upgrade to elixir 0.14.3-dev