Merge branch 'release/0.10' into develop
Adds the ability to compare the DDL of the columns instead of only the name.
Unification of the output formatter options (always use capitalised letters).
Changes the default format of dbnav.
Adds the side-by-side option.
Adds foreign keys for SQLite connections.
May now also be used as a shell interpreter:

```
#!/usr/bin/env dbexec user@host/database

select * from table;
```
Adds a SQLite database with test data.
Fixes tests.
Moves tests to the root package.
Some code cleanup, fixes bash completion.
Fixes autocomplete results of tables and columns/values. Fixes typo in README.
Adds a perl script that generates the usage documentation in README.md.
Bumps version to 0.11.
Merge branch 'release/0.11'