Better logging and connection error handling.

[blabno]

Have a look at this and let me know what you think. If you're ok with it, then I'll add some unit tests.

•  General Comment
• <img border=0 src='https://avatars.githubusercontent.com/u/767675?v=3' height=16 width=16'> is this still relevant? Connection has been reworked.
• <img border=0 src='https://avatars.githubusercontent.com/u/767675?v=3' height=16 width=16'> This has now been changed. Connection pooling in place. Closing.

  

[mavdi]

is this still relevant? Connection has been reworked.

[mavdi]

This has now been changed. Connection pooling in place. Closing.