#712 Force conan version

Signed-off-by: Uilian Ries <uilianries@gmail.com>

conan/travis/install.sh

@@ -18,4 +18,5 @@ if [[ "$(uname -s)" == 'Darwin' ]]; then
     pyenv activate conan
 fi
 
-pip install -U conan conan_package_tools
+pip install conan==1.10.2
+pip install conan_package_tools