Removed mindelay action since the `delay_sec` field makes it unnecessary.

Additional unit tests to test the new semantics of delay_sec are needed.

Also, apply_block and push_transaction now respect the skip_authority_check flag.

implment stub of new eosio.msig contract using new contract structure
define eosio.msig abi
eoslib name class now uses {} rather than constructor and uses magic_get
serialization

- disable mongo test that doesn't work
- remove extra param from set_resource_limits

typos, removed PACKED, use time typedef in voter_info, remove
unnecessary padding

Rename action_size to action_data_size.

This reverts commit 53350a47.

Tests fail: `call_indirect to function with wrong signature`

Added a missing action in "apply" function. Fixed a potential typo in an action struct and action name. Fixed typo in comment.