updated backend to sync whether this is a vpn
updated so that clients are not vpns by default
updated to indicate that vpns are in use
fixed a bug where we used the wrong module names
Merge pull request #50 from ben-jones/make_vpn_more_robust

Add VPN flag to registration/config
add util to pull down a cert and its fingerprint
add tests to check tls certs and test data
added ssl stripping test
changed util location
updated tls mitm test for code review comments
formatting- removed file header and spacing
updated ssl_strip to require urls with protocol
formatting- adding spacing between code and imports
made stripping conditions more concise
made better var names
Merge pull request #60 from ben-jones/backport_tests

Backport tests