dev-cpp/libjson-rpc-cpp: Update deps & build args for live version

Update the live ebuild. Use dev-cpp/catch for tests. Work-around test
build failure by enabling examples. Bump to EAPI 6.

The package still fails to build because of Debian multiarch support
breaking multilib: https://github.com/cinemast/libjson-rpc-cpp/pull/161.

dev-cpp/libjson-rpc-cpp/libjson-rpc-cpp-9999.ebuild

@@ -1,10 +1,10 @@
-# Copyright 1999-2015 Gentoo Foundation
+# Copyright 1999-2016 Gentoo Foundation
 # Distributed under the terms of the GNU General Public License v2
 # $Id$
 
-EAPI=5
+EAPI=6
 
-EGIT_REPO_URI="https://github.com/cinemast/${PN}"
+EGIT_REPO_URI="https://github.com/cinemast/${PN}.git"
 EGIT_BRANCH=develop
 inherit cmake-utils git-r3
 
@@ -24,16 +24,17 @@ RDEPEND="
 	stubgen? ( dev-libs/argtable:= )"
 DEPEND="${RDEPEND}
 	doc? ( app-doc/doxygen )
-	test? ( dev-libs/boost )"
+	test? ( dev-cpp/catch )"
 
 src_configure() {
 	local mycmakeargs=(
 		-DHTTP_CLIENT=$(usex http-client)
 		-DHTTP_SERVER=$(usex http-server)
-		# they are not installed
-		-DCOMPILE_EXAMPLES=NO
+		# they are not installed but required for tests to build
+		-DCOMPILE_EXAMPLES=$(usex test)
 		-DCOMPILE_STUBGEN=$(usex stubgen)
 		-DCOMPILE_TESTS=$(usex test)
+		-DCATCH_INCLUDE_DIR="${EPREFIX}/usr/include/catch"
 	)
 
 	cmake-utils_src_configure