ZOO-Project 1.6.0 release notes

• Fix to fetch default iotype when no value is provided
• Fixes for building with OTB 5.8 support and ITK 4.10
• Add the C# as a supported programming language for Services
• Add nested inputs and outputs support (WPS 2.0.0)
• Add servicePath special key to specify the service location
• Add the PHP version 7 support
• Add --with-etc-dir option to specify the location of the main.cfg file
• Support GDAL version 2.1.0.
• Add the MapServer 7.0.1 internal support.
• Support for exotic location of openssl.
• Add ZOO-Client API documentation reference in the official documentation.
• Add CORS support.
• Fix issue when dealing with Array in JavaScript support.
• Update the Centos installation procedure.
• Small fixes in java support.
• Fix issue when XML request contains empty nodes for inputs
• Add status update for contour lines computation
• Fix FASTCGI location using the --with-fastcgi option.
• Redefined the API function addToMapWithSize to fix problem with Python/PHP support.