Features
- Implemented TCP convergence layer draft (v28) (1c1c9c6)

Miscellaneous Tasks
- Upgraded d7sneakers version, it now bundles sqlite (ee8aab0)
- Added armv7 target for binary releases (97ebda1)

Refactor
- Changed DtnPeer to carry not only IpAddresses but a an enum with IpAddr and Generic(String) (8b68837)