Update forbidden-apis to 1.5.1 and remove the relaxed missing classes error.
Merge remote-tracking branch 'upstream/master'
Merge branch 'master' of https://github.com/elasticsearch/elasticsearch
Merge branch 'master' of https://github.com/elasticsearch/elasticsearch
Update forbidden-apis to 1.6
Update forbidden-apis to 1.6
Update forbidden-apis to 1.6
Merge branch 'master' of https://github.com/uschindler/elasticsearch into forbiddenapis-1.6-update
Merge pull request #7158 from uschindler/forbiddenapis-1.6-update

Update forbidden-apis to 1.6

Closes #7158