Add coverity badge
Fix server error handling

Fixes libattachsql/libattachsql#5
Merge pull request #17 from LinuxJedi/server_errors

Fix server error handling
Now with multi-statement/result support!

Fixes libattachsql/libattachsql#6
Document next result function
Merge pull request #18 from LinuxJedi/multi_statement

Multi statement
Hopefully fix clang Travis failure

Can't reproduce it yet
Add float/double escape support
Check buffer before poll

Sometimes we may already have the data we are polling for in the buffer.
A common example is multi-statement result sets.  Check the buffer for
packets before trying to pull more off the network.
Merge pull request #22 from LinuxJedi/fix_21

Check buffer before poll
Merge pull request #23 from LinuxJedi/escape_float

Add float/double escape support
Add Read The Docs badge
Add option set function

String out options processing from ascore, not needed there
Document set option
Merge pull request #24 from LinuxJedi/get_set

Get set