Added new return error PPH_ACCOUNT_EXISTS
PPH_ACCOUNT_EXISTS is now returned when the create account method
attempts to create an existing account
Updated comments for the pph_destroy_context return values
PPH_ERROR_UNKNOWN is not part of the possible return values, so it has
been removed and changed for PPH_BAD_POINTER, which is possible.
Updated comments in the pph_init_context function
Comments now state that the AES_key equals the secret, avoiding the
misleading phrase: "for the timme being".
Added a space between the comment blocks and the function declarations
Updated comments in the pph_init_context function
Fixed redaction in the process comment block
Updated comments in the pph_init_context function
Redaction was fixed to make a clearer statement on what the return
values where
Updated comments for the pph_init_context
Some insight of what does the threshold argument mean was added
Updated spacing between braces and statements
Updated spacing between braces and statements
Fixed a typo in the pph_reload_context comments
unlock_password_data contained an unnecessary space
Fixed typo in comments
Remaded the hash_bytes argument
The hash_bytes argument in the create_pph_secret function was changed to
hash_length, to be more self-explanatory
Updated comments in the pph_init_context function