first commit
encrypt by file instead of just yml values
add some specs WIP
use encrypted_string gem
remove methods we don't need after using the gem
generated new keys for dummy app.  use 4092 for RSA key length
increase key size
Refactoring
Update code syntax blocks in README
Use block encryption for large data

This commit should allow us to use smaller RSA keys (large RSA keys
take a long time to generate).

The proper way to do asymmetric encryption on large data is to use
symmetric encryption (AES) with random keys, then use RSA to encrypt
the keys. Here, I'm just dividing the data into chunks and doing RSA
encryption directly. Since this is run only once, the extra overhead
should be acceptable. We may want to revisit later though.
Update spec files to use smaller keys
Add encrypted file for secret yetting