channel blocks sugar

Merge pull request #92 from s7techlab/blocks-sugar

blocks sugar, unify seek opts

Block parser config tx, bug with orderer certs

Merge pull request #91 from s7techlab/chan-cfg-parsers

block parser bug fixes

Block parser, separate lifecycle with/without discovery

Merge pull request #88 from s7techlab/chan-cfg-parsers

Block parser, separate lifecycle with/without discovery

Verbose errors from orderer

Orderer.Broadcast returns full error message, not just code

fix event seek

Merge pull request #78 from s7techlab/event-seek-fix

fix events seek

config update request can be signed by multiple identities

Broke backward compatibility in util/channel.ProceedChannelUpdate
Now method accepts ids []msp.SigningIdentity, not one identity

Interface refactoring

Merge pull request #76 from s7techlab/peer-interface-fix

Peer interface fix

Events subscription refactoring

Merge pull request #75 from s7techlab/event-seek-block-range

Event seek block range

Add MSP parsing(admins,users,msp. not just one msp)

A new way of parsing MSP dir and getting identities:
identity.NewMSPIndentitiesFromPath(mspID, mspPath string) will return all identities in the MSP dir(MSP, admins, users)

type MSPIndentities struct {
	// identity from 'signcerts' 
	MSP api.Identity
	// identities from 'admincerts'
	Admins []api.Identity
	// indentities from 'users'
	Users []api.Identity
}

Service discovery, core api shortcuts, grpc round robin tls fix

Merge pull request #73 from s7techlab/grpc-rr-and-linters

revert to old protobuf lib