added a basic builder class for PutMapping action and provided examples on using elasticsearch's documentMapper with this builder.
readme-fix
Cleaned up and refactored all Action subclasses.
Minor test related fixes for mapping get/put actions.
Refactored search related classes to use AbstractMultiIndexActionBuilder style builders.
Removed unnecessary Builder from PutMapping action.
Refactored search related classes to use AbstractMultiIndexActionBuilder style builders.
Merge branch 'master' of https://github.com/kramer/Jest into kramer-master

Conflicts:
	src/main/java/io/searchbox/core/Search.java
Merge branch 'master' of https://github.com/kramer/Jest into kramer-master

Conflicts:
	src/main/java/io/searchbox/core/Search.java