Support Caravel 0.11.0 Dependencies

[cbaakel]

Trying to use this with the new version of Caravel returns an error. As is it works fine on 0.10.0

This seems very relevant apache/superset#1256

remote:          Running setup.py install for sasl: started
remote:            Running setup.py install for sasl: finished with status 'error'
remote:            Complete output from command /app/.heroku/python/bin/python -u -c "import setuptools, tokenize;__file__='/tmp/pip-build-R4bA81/sasl/setup.py';exec(compile(getattr(tokenize, 'open', open)(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" install --record /tmp/pip-pjsN8h-record/install-record.txt --single-version-externally-managed --compile:
remote:            running install
remote:            running build
remote:            running build_py
remote:            creating build
remote:            creating build/lib.linux-x86_64-2.7
remote:            creating build/lib.linux-x86_64-2.7/sasl
remote:            copying sasl/__init__.py -> build/lib.linux-x86_64-2.7/sasl
remote:            running egg_info
remote:            writing requirements to sasl.egg-info/requires.txt
remote:            writing sasl.egg-info/PKG-INFO
remote:            writing top-level names to sasl.egg-info/top_level.txt
remote:            writing dependency_links to sasl.egg-info/dependency_links.txt
remote:            warning: manifest_maker: standard file '-c' not found
remote:            
remote:            reading manifest file 'sasl.egg-info/SOURCES.txt'
remote:            reading manifest template 'MANIFEST.in'
remote:            writing manifest file 'sasl.egg-info/SOURCES.txt'
remote:            copying sasl/saslwrapper.cpp -> build/lib.linux-x86_64-2.7/sasl
remote:            copying sasl/saslwrapper.h -> build/lib.linux-x86_64-2.7/sasl
remote:            copying sasl/saslwrapper.pyx -> build/lib.linux-x86_64-2.7/sasl
remote:            running build_ext
remote:            building 'sasl.saslwrapper' extension
remote:            creating build/temp.linux-x86_64-2.7
remote:            creating build/temp.linux-x86_64-2.7/sasl
remote:            gcc -pthread -fno-strict-aliasing -g -O2 -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -fPIC -Isasl -I/app/.heroku/python/include/python2.7 -c sasl/saslwrapper.cpp -o build/temp.linux-x86_64-2.7/sasl/saslwrapper.o
remote:            cc1plus: warning: command line option ‘-Wstrict-prototypes’ is valid for C/ObjC but not for C++ [enabled by default]
remote:            In file included from sasl/saslwrapper.cpp:254:0:
remote:            sasl/saslwrapper.h:22:23: fatal error: sasl/sasl.h: No such file or directory
remote:             #include <sasl/sasl.h>
remote:                                   ^
remote:            compilation terminated.
remote:            error: command 'gcc' failed with exit status 1
remote:            
remote:            ----------------------------------------