Bump version to 2.1 and update readme to mention IDA 9 is supported

Search for Python.exe in "Scripts" on Windows when a virtualenv is ac…

…tivated

Also rework virtualenv activation snippet for idapythonrc.py

Fix version dependency of jupyter-client (again) and bump minor version

Require that the installed jupyter-client is less than version 7

This is a temporary measure while we find the root cause or the crash (see #44)

Bump version to 1.7.1 to fix new installation

Bump version to 1.7

Bump version to v1.6

Bump version to 1.5

Add a long description for PyPI

Use setuptools instead of distutils in setup.py

Bump version to 1.2