Added cache folder to .gitignore

Don’t want to be committing database-specific cache to the code
repository.
Added newline at end of file
Diff supports timestamp fields

Diff was crashing when it came to a field of type ‘timestamp’. The log
for testing the types now recognizes timestamp (and other types with no
length in parentheses).
Remove extra blank line. Fixes #5.
Fix diffing of columns that don’t have parentheses. Fixes #4, thanks to [travisaustin](https://github.com/travisaustin).
Fix bad rebase.
Merge branch 'bug/fix-timestamp-diff' into develop. Fixes #4.
Merge branch 'gitignore' into develop. Fixes #5.
Bump version number.
Merge branch 'develop'

* Fix diffing columns without parentheses (such as `timestamp`).
* Bump to version 0.8.2.