Bump version 0.14.0

[lukpueh]

• behavior change
  • Default to pure Python ed25519 signature verification when nacl is unavailable (Improve handling of native dependencies #200)
  • Fix settings.SUBPROCESS_TIMEOUT access in process module (Add default timeout setting helper to process module #202)
• Improve schema-related error message (Make check_match() errors more readable for ListOf objects #199)
• Generally improve optional dependency handling (Improve handling of native dependencies #200)
• Enhance test configuration, fix typos and remove unused code (Miscellaneous minor fixes #201)
• Fix improper identity check ([gpg] Fix return code check #203)

[coveralls]

Coverage remained the same at ?% when pulling 439f509 on lukpueh:bump_version_0.14.0 into 992a944 on secure-systems-lab:master.

[coveralls]

Coverage remained the same at ?% when pulling 439f509 on lukpueh:bump_version_0.14.0 into 992a944 on secure-systems-lab:master.

[lukpueh]

Our coveralls integration seems to be broken. However, Travis tests pass and the coverage summary in the travis build log also looks good. Merging...