title: Unexpected issue while building examples for movidius neural compute stick (ncsdk)
body: <p>Recently I bought Movidius Neural Compute Stick and I started with provided tutorial on the website. <strong>Make install</strong> works without any issue. However, despite following exact steps I'm constantly failing into same error while running <strong>make examples</strong>:</p>
  
  <pre><code>mvNCCompile -w bvlc_googlenet.caffemodel -s 12 deploy.prototxt
  mvNCCompile v02.00, Copyright @ Movidius Ltd 2016
  
  Failed to include caffe_pb2, things might go wrong!
  Traceback (most recent call last):
  File "/usr/local/bin/mvNCCompile", line 118, in 
  create_graph(args.network, args.inputnode, args.outputnode, args.outfile, args.nshaves, args.inputsize, args.weights)
  File "/usr/local/bin/mvNCCompile", line 100, in create_graph
  from Controllers.CaffeParser import parse_caffe
  File "/usr/local/bin/ncsdk/Controllers/CaffeParser.py", line 29, in 
  import caffe
  File "/opt/movidius/caffe/python/caffe/init.py", line 4, in 
  from .proto.caffe_pb2 import TRAIN, TEST
  File "/opt/movidius/caffe/python/caffe/proto/caffe_pb2.py", line 17, in 
  serialized_pb='\n\x0b\x63\x61\x66\x66\x65.proto\x12\x05\x63(...most likely not important here...)
  File "/usr/local/lib/python3.5/dist-packages/google/protobuf/descriptor.py", line 829, in new
  return _message.default_pool.AddSerializedFile(serialized_pb)
  TypeError: expected bytes, str found
  Makefile:80: recipe for target 'compile' failed
  make[4]: *** [compile] Error 1
  make[4]: Leaving directory '/home/sebastian/Development/movidius_workspace/ncsdk/examples/caffe/GoogLeNet'
  cp: cannot stat '../../caffe/GoogLeNet/graph': No such file or directory
  Makefile:9: recipe for target 'googlenet' failed
  make[3]: *** [googlenet] Error 1
  make[3]: Leaving directory '/home/sebastian/Development/movidius_workspace/ncsdk/examples/apps/multistick_cpp'
  Makefile:12: recipe for target 'multistick_cpp/.' failed
  make[2]: *** [multistick_cpp/.] Error 2
  make[2]: Leaving directory '/home/sebastian/Development/movidius_workspace/ncsdk/examples/apps'
  Makefile:12: recipe for target 'apps/.' failed
  make[1]: *** [apps/.] Error 2
  make[1]: Leaving directory '/home/sebastian/Development/movidius_workspace/ncsdk/examples'
  Makefile:51: recipe for target 'examples' failed
  make: *** [examples] Error 2
  </code></pre>
  
  <p>My configuration is as follows:</p>
  
  <pre><code>sebastian@linux:~$ python --version
  Python 2.7.12
  sebastian@linux:~$ echo $PYTHONPATH
  :/opt/movidius/caffe/python
  sebastian@linux:~$ lscpu | grep "Model name"
  Model name: Intel(R) Celeron(R) CPU N2840 @ 2.16GHz
  sebastian@linux:~$ lsb_release -a
  No LSB modules are available.
  Distributor ID: Ubuntu
  Description: Ubuntu 16.04.3 LTS
  Release: 16.04
  Codename: xenial
  </code></pre>
  
  <p>I'd appreciate suggestions what I need to do to succesfully build examples.</p>