Fixes limit problem on table.query (#1998)
Merge remote-tracking branch 'TracyWebTech/fix_ddb_limit' into fix_ddb_limit
Added to unit test for #1998, #2014
Fixed typo in Table.create example
Fixed conflict between limit and max_page_size in dynamodb2.ResultSet
Adding a license/copyright header.
Add documentation about the version_id behavior of Key objects.
Merge pull request #2025 from garnaat/fix-copyright-notice

Adding a license/copyright header.
Merge pull request #2023 from pasc/dynamodb2_doc_typo

Fixed typo in Table.create example
Merge pull request #2026 from garnaat/doc-version-id

Add documentation about the version_id behavior of Key objects.
Merge branch 'fix_ddb_limit' into develop
Fixes #2014.