Update README.md
`ConferenceResource` delete endpoint should not have the trailing word "delete" at its end.
Merge pull request #194 from CruGlobal/EVENT-10

`ConferenceResource` delete fix
Upgrade rest easy dependencies, include jackson 2.

Fixing syntax error when switching from jackson to jackson2
Merge pull request #195 from CruGlobal/EVENT-18

Event 18 - Replace fasterxml Jackson 2 provider with Rest Easy Jackson 2
Add logged in username (email) to new conference creator Permission.