Clean up the usage and help texts so that they are in sync

- Change help text syntax to match usage text syntax
- Add missing commands from help text
- Fix indentation

Also, show the version number in the usage text.
prepare switch to Frank
Implemented native keyboard textfield writes
Merge pull request #97 from angelolloqui/master

Implementation of native keyboard methods on fields
Prepare for Frank
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Update README.md
Merge pull request #96 from vocaro/usage-text-cleanup

Clean up the usage and help texts so that they are in sync