contrib: bump yaml-cpp

- Use new version using C++11 shared_ptr rather
than boost implementation
- This remove the dependence to boost

Tuleap: #381
Change-Id: I64f0b58c75b9a573098a41f9f675067bb1e1f5ea

contrib/src/boost-headers/SHA512SUMS

-a0ac451a51c5b183ee5625da66ccdbbc5a079d71c3d1bd7570e1e5f30a3f2f852a8e8237a60a3419ee72bcffdf4e1e7867d9d6ab91cf314db95df2142b70c008  boost-headers.tar.gz

contrib/src/boost-headers/rules.mak

-# Boost headers (needed for building yaml-cpp)
-BOOST_HEADERS_URL = https://gitlab.savoirfairelinux.com/sfl-ports/boost-headers/repository/archive.tar.gz
-
-$(TARBALLS)/boost-headers.tar.gz:
-	$(call download,$(BOOST_HEADERS_URL))
-
-.sum-boost-headers: boost-headers.tar.gz
-
-boost-headers: boost-headers.tar.gz .sum-boost-headers
-	$(UNPACK)
-	mv boost-headers.git $@
-	touch $@
-
-.boost-headers: boost-headers
-	mkdir -p ../$(HOST)/include
-	cp -rf $< ../$(HOST)/include/boost
-	touch $@

contrib/src/yaml-cpp/SHA512SUMS

-3c6928684d603815c016d663af36be94507f2cccf167d6d8d7cd7dea3ea5f73ec88d62952a2b5d11796e40132857afcbbacd9eafd688f2dc11d0c339caf2e013  yaml-cpp-0.5.1.tar.gz
+0347377adf60b28cf542fef6a6f24585d93ebab28f413b7ed0ac395093ca09c1ba55f7a9b172ae24214ff72128b40d0a3a821ec5015fb30a8b49d992d794c3e7  yaml-cpp-24fa1b33805c9a91df0f32c46c28e314dd7ad96f.tar.gz

contrib/src/yaml-cpp/rules.mak

 # YAML
-YAML_CPP_VERSION := 0.5.1
-YAML_CPP_URL := http://yaml-cpp.googlecode.com/files/yaml-cpp-$(YAML_CPP_VERSION).tar.gz
+YAML_CPP_VERSION := 24fa1b33805c9a91df0f32c46c28e314dd7ad96f
+YAML_CPP_URL := https://github.com/jbeder/yaml-cpp/archive/$(YAML_CPP_VERSION).tar.gz
 
 PKGS += yaml-cpp
 
@@ -8,12 +8,9 @@ ifeq ($(call need_pkg,'yaml-cpp'),)
 PKGS_FOUND += yaml-cpp
 endif
 
-DEPS_yaml-cpp = boost-headers $(DEPS_boost-headers)
-
 YAML_CPP_CMAKECONF := -DBUILD_STATIC:BOOL=ON \
                       -DBUILD_SHARED:BOOL=OFF \
                       -DYAML_CPP_BUILD_TOOLS:BOOL=OFF \
-                      -DBoost_INCLUDE_DIR=../../$(HOST)/include \
                       -DBUILD_SHARED_LIBS:BOOL=OFF
 
 $(TARBALLS)/yaml-cpp-$(YAML_CPP_VERSION).tar.gz: