Release of 1.4.14

- 932cb531cc03fc3d9c394e5eadff75570a05337a: Merge pull request #852 from mattrjacobs/merge-fix-851
- 18fde946233ecbad1b5d5e58f064286a2b00b495: Fixed merge problem
- 2e10b732b444c9c554255c95d65fde6ac1296121: Merge remote-tracking branch 'upstream/pr/851' into merge-fix-851
- 11d5baddb5e393f24346975628ea698176a9396b: Fix generated arglists
- 84e523f4f1e41a05ef92f2514c3abdd8e84bdc6b: Merge pull request #849 from mattrjacobs/subclass-cmd
- 9037c7c4ce6cc095a2e68976dd8ce363f9ff6075: Added unit tests proving that request log, request caching and fallback work as expected when there is a class hierarchy of HystrixCommands
- fd5920751a2982f48cfbd59b0fa83d83524e51a6: Update CHANGELOG.md
