Fixed missing OpenSSL module error.

Fixed missing OpenSSL module error when bitcoind configured with HTTPS.
Merge pull request #131 from kevinxucs/pip-requirement-fix

Fixed missing OpenSSL module error.
added --disable-advertise option to disable advertising local IP address for incoming connections
fixed starting a new sharechain (broken by a flaw in 76b297b6, first evident in d874cb70). thanks warren for reporting the bug!
warn about bitcoin <0.8.5