Added CMakeLists.txt. I'm not a cmake-expert, feedback would be much appreciated.

CMakeLists.txt

@@ -0,0 +1,41 @@
+cmake_minimum_required (VERSION 2.8)
+project (Simple-Web-Server)
+set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11 -O3")
+
+if("${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU")
+    if (CMAKE_CXX_COMPILER_VERSION VERSION_LESS 4.9)
+        message(FATAL_ERROR "GCC version >=4.9 required.")
+    endif()
+elseif ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "Clang")
+    if (CMAKE_CXX_COMPILER_VERSION VERSION_LESS 3.3)
+        message(FATAL_ERROR "Clang version >=3.3 required.")
+    endif()
+else()
+    message(WARNING "Your compiler (${CMAKE_CXX_COMPILER_ID}) has not been tested on this project. Only Clang and GCC has been tested. Please report any problems at the project page on GitHub.")
+endif()
+
+#Only tested with versions 1.55 and 1.56
+find_package(Boost 1.41.0 COMPONENTS system REQUIRED)
+message("Boost include dir: ${Boost_INCLUDE_DIR}")
+message("Boost libraries: ${Boost_LIBRARIES}")
+include_directories(${Boost_INCLUDE_DIR})
+
+#TODO: add requirement for version 1.0.1g (can it be done in one line?)
+find_package(OpenSSL REQUIRED)
+message("OpenSSL include dir: ${OPENSSL_INCLUDE_DIR}")
+message("OpenSSL SSL libraries: ${OPENSSL_SSL_LIBRARIES}")
+message("OpenSSL crypto libraries: ${OPENSSL_CRYPTO_LIBRARIES}")
+include_directories(${OPENSSL_INCLUDE_DIR})
+
+find_package(Threads REQUIRED)
+message("Threads libraries/flag: ${CMAKE_THREAD_LIBS_INIT}")
+
+add_executable(https_examples https_examples.cpp)
+target_link_libraries(https_examples ${Boost_LIBRARIES})
+target_link_libraries(https_examples ${OPENSSL_SSL_LIBRARIES})
+target_link_libraries(https_examples ${OPENSSL_CRYPTO_LIBRARIES})
+target_link_libraries(https_examples ${CMAKE_THREAD_LIBS_INIT})
+
+add_executable(http_examples http_examples.cpp)
+target_link_libraries(http_examples ${Boost_LIBRARIES})
+target_link_libraries(http_examples ${CMAKE_THREAD_LIBS_INIT})