On connection::parse char* can be const
Merge pull request #4 from luca3m/const-char

On connection::parse char* can be const
Const modifier to table get and some array operations
Add pragma once
Merge pull request #5 from luca3m/array-count

Array methods, Table and include guards
Envelope owns body buffer
Add various utilities to Table and Array
Add documentation
Merge branch 'table-array-utilities'