Make submit-cert.py run properly on linux, compatible to Python 3, use HTTPS and add more CT logs

[hardfalcon]

The title says it all, all changes only apply for submit-cert.py:

• Fix the script's shebang by replacing all CRLF newlines with standard UNIX newlines.
• Make the script compatible with Python 3 by adding parentheses to all print calls.
• Improve error and exception handling by giving the user more information.
• Fix communication problems with most of the non-Google log servers by switching over all HTTP requests to HTTPS. This also fixes issue Use https to submit #1.
• Beautify, reorder and extend the list of log servers by basically just copying the table from https://crt.sh/?a=1

[tomrittervg]

Thanks!