Updated README for 0.9.1 release.
Updated POM for RestExpress-Common (from 1.0.0 to version 1.0.1) and jackson-databind (from 2.1.3 to 2.1.4).
Updated QueryFilters (and UT) to conform to new RestExpress-Common.
[maven-release-plugin] prepare release RestExpress-0.9.0