v1.7.2

@an-tao Is busy so I'm making the release in place of him.

API Change List

• Add port() and host() to HttpClient

• Add stop() method to the WebSocketClient class

Changes

• Enables higher level of warnings when building on UNIX with GCC

• Generic optimizations

• Add redis example

• Added support for paths containing unicode characters on Windows

• Load ParseAndAddDrogonTests in DrogonConfig

• Add BUILD_DOC to cmake options

• Add websocket server example

• CMake: Add CPack for .deb and .rpm package generation

• cmake: Use GNUInstallDirs to figure out install dirs.

Fixed

• Fix WS client example not working with integration_test

• Fix WS client example error when encountering bad IP addresses

• CacheFile supports >2GB files on 64-bit Windows

• drogon_ctl now emits error on failing to create view from CSP

• Added the make program to Ubuntu docker environment

• Correctly check the case-insensitive value of the upgrade header of responses in websocket connections

• Fix incorrect MD5 hash when using internal MD5 implementation when input size == block size+1

• Fix test success message incorrectly shown for a failed test when -s is flag present

• Force using boost::filesystem when building for Android

• Escape connection string in drogon_ctl create model

• Fix some memory leak and race conditions in WebSocketClient