hotfix/v1.2.3 - fix setuptools installing unsupported scapy version

[tintinweb]

fixes #79

• dependencies are now stored in one place (requirements.txt)

• fixes fd leak

• [x] local test: pip install .

• [x] testpypi

• [x] release as v1.2.3.1

• [x] merge master (even though it should have been the other way round ;) )

pip install .

  tin@ubuntu-tin:~/scapy-ssl_tls$ pip install .
  Processing /home/tin/scapy-ssl_tls
  Collecting pycrypto>=2.6 (from scapy-ssl-tls===1.2.3.1)
    Downloading pycrypto-2.6.1.tar.gz (446kB)
      100% |¦¦¦¦¦¦¦¦¦¦¦¦¦¦¦¦¦¦¦¦¦¦¦¦¦¦¦¦¦¦¦¦| 450kB 732kB/s
  Collecting scapy<2.3.3,>=2.2.0 (from scapy-ssl-tls===1.2.3.1)
    Downloading scapy-2.3.2.tar.gz (1.1MB)
      100% |¦¦¦¦¦¦¦¦¦¦¦¦¦¦¦¦¦¦¦¦¦¦¦¦¦¦¦¦¦¦¦¦| 1.1MB 142kB/s
  Collecting tinyec>=0.3.1 (from scapy-ssl-tls===1.2.3.1)
    Downloading tinyec-0.3.1.tar.gz
  Building wheels for collected packages: scapy-ssl-tls, pycrypto, scapy, tinyec
    Running setup.py bdist_wheel for scapy-ssl-tls ... done
    Stored in directory: /home/tin/.cache/pip/wheels/99/d6/d0/7a6d3c3bdc35182d47dee6cc230244a63de4570828578133bc
    Running setup.py bdist_wheel for pycrypto ... done
    Stored in directory: /home/tin/.cache/pip/wheels/80/1f/94/f76e9746864f198eb0e304aeec319159fa41b082f61281ffce
    Running setup.py bdist_wheel for scapy ... done
    Stored in directory: /home/tin/.cache/pip/wheels/64/d1/83/e38a1301a91516ccb19ad5177ff874fae13889a16dc40d7b0f
    Running setup.py bdist_wheel for tinyec ... done
    Stored in directory: /home/tin/.cache/pip/wheels/a9/a3/06/83aad0e18fe30b85290c903b7901f77b2fa38469a7d3256c09
  Successfully built scapy-ssl-tls pycrypto scapy tinyec
  Installing collected packages: pycrypto, scapy, tinyec, scapy-ssl-tls
  Successfully installed pycrypto scapy scapy-ssl-tls-1.2.3.1 tinyec-0.3.1

// I've created a v1.2.3 hotfix branch release/1.2.3 until we release v1.3.0

[alexmgr]

Looks good. +1