Use SchemaParser API to remove dependency on subprocess call to compiler

.travis.yml

@@ -10,6 +10,7 @@ python:
 compiler: gcc
 
 before_install:
+  - sudo apt-get install autoconf
   - sudo add-apt-repository -y ppa:ubuntu-toolchain-r/test
   - sudo apt-get -qq update
   - sudo apt-get -qq install g++-4.8 libstdc++-4.8-dev
@@ -17,7 +18,7 @@ before_install:
                                      --slave   /usr/bin/g++  g++  /usr/bin/g++-4.8
                                      --slave   /usr/bin/gcov gcov /usr/bin/gcov-4.8
   - sudo update-alternatives --quiet --set gcc /usr/bin/gcc-4.8
-  - "curl -L https://gist.github.com/jparyani/6216515/raw/a50cb02574033a14f3856dac949f83b4c0557c82/install_capnproto.sh | /bin/bash"
+  - "curl -L https://gist.github.com/jparyani/6216515/raw/6ca2194faf253f2770de515764a5a0057aa86f48/install_capnproto.sh | /bin/bash"
   - pip install -U setuptools
   - pip install cython