upgrade spring-boot to 1.0.0.BUILD-SNAPSHOT
remove "evernote.format_output" property feature.

spring-boot now has configuration to modify jackson ObjectMapper to pretty print the output.
property key is "http.mappers.json_pretty_print"

https://github.com/spring-projects/spring-boot/commit/8a55fbebb26c33a756274db3219d7dcb4a945616