Changed CMake options to compile the core shared

It is now compiled under 'toxcore' instead of just 'core' to be able to be installed without conflicts.

CMakeLists.txt

@@ -33,15 +33,15 @@ if(NOT USE_NACL)
 endif()
 
 macro(linkCoreLibraries exe_name)
-	add_dependencies(${exe_name} core)
+	add_dependencies(${exe_name} toxcore)
 	if(WIN32)
 		include_directories(${CMAKE_HOME_DIRECTORY}/sodium/include/)
-		target_link_libraries(${exe_name} core
+		target_link_libraries(${exe_name} toxcore
 		${CMAKE_SOURCE_DIR}/sodium/lib/libsodium.a
 			ws2_32)
 	else()
 		include_directories(${SODIUM_INCLUDE_DIR})
-		target_link_libraries(${exe_name} core
+		target_link_libraries(${exe_name} toxcore
 			${LINK_CRYPTO_LIBRARY})
 
 	endif()

core/CMakeLists.txt

@@ -1,5 +1,5 @@
 cmake_minimum_required(VERSION 2.6.0)
-project(core C)
+project(toxcore C)
 
 if(WIN32)
 	include_directories(${CMAKE_HOME_DIRECTORY}/sodium/include/)
@@ -16,4 +16,4 @@ set(core_sources
 	LAN_discovery.c
 	Messenger.c)
 
-add_library(core ${core_sources})
+add_library(toxcore SHARED ${core_sources})