- Prepared changelog for next release

- updated changelog for next release
- upgraded tomcat version to fix CVE

Fixed README

AuthzForce Server

authzforce-ce-core -> 7.1.0
authzforce-ce-core-pap-api -> 6.3.0
authzforce-ce-pap-dao-flat-file -> 8.0.0

Fixed #11
Fixed #12
Updated changelog with references to latest fixed issues

- Porting to Tomcat 8/Servlet 3.1, Java 8, Ubuntu 16.04 LTS
- Replaced ubuntu package dependency on JDK with JRE
- JSON support (added dependency on Jettison):
	- New config file for XML namespace to JSON prefix mappings
- Update license headers for new year 2017

- Parent project: 3.4.0 -> 4.1.1: 
    - Apache CXF 3.1.0 -> 3.1.9
    - Java Servlet API 3.0.1 -> 3.1.0
- authzforce-ce-core: 5.0.2 -> 6.1.0:
	- Saxon-HE 9.7.0-11 -> 9.7.0-14
	- Spring 3.2.2 -> 4.3.5,
- authzforce-ce-pap-dao-flat-file: 6.1.0 -> 7.0.0
- authzforce-ce-core-pdp-api dependency version: 8.0.0 -> 8.2.0
- Added unit test expecting 400 Bad Request when pushing policy with
invalid function ID in Apply statement

- Lower log level of BadRequestException from warn to info
- Updated changelog with latest changes
- Updated README for upgrades adding instruction for backup

Removed SNAPSHOT dependencies in pom
Updated changelog with latest changes

  -> changed fastinfoset-aware wadl location 	
- Updated changelog with new feature 'conformance to rest profile of
xacml'
- Added test for pdp link relation according to conformance to rest
profile of xacml 

- Added README.html automatic generation from src/tar/README.md for
tarball distribution
- Updated changelog to prepare release