title: CMake can't find cpp-netlib libraries
body: <p>I recently started learning CMake and have decided to use it with an old project I was working on. The project has cpp-netlib, boost and Openssl as dependencies.
  Here is the working CMakeLists.txt file I came up with.</p>
  
  <pre><code>CMAKE_MINIMUM_REQUIRED(VERSION 3.4.1)
  SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11")
  PROJECT(MangaMe)
  INCLUDE_DIRECTORIES(includes)
  ADD_EXECUTABLE(mangaMe src/mangaMe.cpp)
  
  set(Boost_USE_MULTITHREADED ON)
  FIND_PACKAGE(Boost 1.59.0 REQUIRED COMPONENTS system thread filesystem)
  INCLUDE_DIRECTORIES(${Boost_INCLUDE_DIRS})
  TARGET_LINK_LIBRARIES(mangaMe ${Boost_LIBRARIES})
  
  SET(OPENSSL_LIB_DIR /usr/local/Cellar/openssl/1.0.2e/lib)
  INCLUDE_DIRECTORIES(/usr/local/Cellar/openssl/1.0.2e/include)
  TARGET_LINK_LIBRARIES(mangaMe ${OPENSSL_LIB_DIR}/libcrypto.dylib ${OPENSSL_LIB_DIR}/libssl.dylib)
  
  #WHY DOESNT THIS WORK!?!??!!?
  #FIND_PACKAGE(cppnetlib 0.11 REQUIRED COMPONENTS client-connections server-parsers uri)
  #INCLUDE_DIRECTORIES(${cppnetlib_INCLUDE_DIRS})
  #TARGET_LINK_LIBRARIES(mangaMe ${cppnetlib_LIBRARIES})
  
  SET(CPPNETLIB_LIB_DIR /usr/local/Cellar/cpp-netlib/0.11.2/lib)
  INCLUDE_DIRECTORIES(/usr/local/Cellar/cpp-netlib/0.11.2/include)
  TARGET_LINK_LIBRARIES(mangaMe ${CPPNETLIB_LIB_DIR}/libcppnetlib-client-connections.a ${CPPNETLIB_LIB_DIR}/libcppnetlib-server-parsers.a ${CPPNETLIB_LIB_DIR}/libcppnetlib-uri.a)
  </code></pre>
  
  <p>I was wondering if anyone has any idea why the commented out section using FIND_PACKAGE to find cppnetlib doesn't work? I used homebrew to install cpp-netlib and when I run an if(cppnetlib_FOUND) I know that it finds the package but it seems to not find the libraries so when I try to make my project it errors saying its missing the libraries from cpp-netlib. I also noticed that when I set the version to 0.11.2 (the currently installed version) in the FIND_PACKAGE I get a message saying </p>
  
  <pre><code>-- Boost version: 1.59.0
  -- Found the following Boost libraries:
  --   system
  --   thread
  --   filesystem
  CMake Error at CMakeLists.txt:16 (FIND_PACKAGE):
    Could not find a configuration file for package "cppnetlib" that is
    compatible with requested version "0.11.2".
  
    The following configuration files were considered but not accepted:
  
      /usr/local/lib/cmake/cppnetlib/cppnetlibConfig.cmake, version: 0.11.1
      /usr/local/lib/cmake/cppnetlib/cppnetlibConfig.cmake, version: 0.11.1
  
  
  
  -- Configuring incomplete, errors occurred!
  See also "/Users/LittleNewt/gitness/mangaMe/build/CMakeFiles/CMakeOutput.log".
  </code></pre>
  
  <p>Not a huge deal since it works when I explicitly specify the directories but would still like to know why I can't just use FIND_PACKAGE.</p>