move constants over
Merge pull request #89 from DavidVorick/server

Add Boostrapping, replace old way for adding participants
fix comment
add check for nil data in CalculateHash()
change return value of UnmarshalAddress()
add client and move some network functions
add check for zero-length array in CalculateHash()
fix typo
add some testing, fix some bugs
add testing for encoding of singed heartbeats
purge libsodium
Keeping consistent style of opening section.

Each paragraph starts with "Sia is ___."
Merge pull request #94 from mdznr/patch-1

Keeping consistent style of opening section.
Missing "is" in sentence "Sia secure."
Merge pull request #95 from mdznr/patch-2

Missing "is" in sentence "Sia secure."
merge master and resolve conflicts