remove unused methods from `JsonProvider` interface
Merge branch 'master' of github.com:jayway/JsonPath into remove-unused-jsonprovider-methods

Conflicts:
	json-path/src/main/java/com/jayway/jsonpath/spi/json/JsonProvider.java
remove unused import
Merge pull request #52 from jochenberger/remove-unused-jsonprovider-methods

remove unused methods from `JsonProvider` interface