Fix dynamic plugins import on Linux
Fix HSTS detection logic

Fixes issue #89
Switch to nassl.DebugSslClient
Return the full certificate chain in XML results
Update changelog for v0.10
Handle certificates with no CN
display nasal import error for easier debugging
Clarify good VS bad results in console output
Display the cert issuer CN if possible
Merge branch 'master' of https://github.com/iSECPartners/sslyze