improve error messages for EvernoteException
update spring-social-evernote to 1.0.3
update test more appropriately
improve error response using BasicErrorController infrastructure.

improved EDAM*Exception handling
update spring-boot to 1.1.5.RELEASE
remove "src/main/resources/git.properties" from .gitignore

It is due to the change in spring-boot 1.1.5.RELEASE
see change: https://github.com/spring-projects/spring-boot/commit/702253bc084b8d573dad6cfa0ba665689713f79a
update library version info in documentation