Safety for browser subgraphs
BasePort: fix isConnected() when no socket are attached
Merge pull request #233 from djdeath/fix-exception-isconnected

BasePort: fix isConnected() when no socket are attached
Use most recent version of read-installed. Fix #235.
Fixed a bug: IIPs sent twice to addressable ports.
Merge branch 'master' of https://github.com/noflo/noflo into iips_for_addressable_ports_fix
Merge pull request #241 from trustmaster/iips_for_addressable_ports_fix

IIPs are sent twice to addressable ports
Subscribe to sockets earlier so debugging works even when components throw errors
Added functions for inport IIP addition and removal.
Renamed inport initial functions for clarification.

addInportInitial is now addGraphInitial
addInportInitialIndex is now addGraphInitialIndex
removeInportInitial is now removeGraphInitial
Updated unit tests to new graph initial function names.
Merge pull request #242 from hayesmg/master

Added functions for inport IIP addition and removal.
Merge pull request #236 from paulyoung/update-read-installed

Use most recent version of read-installed. Fix #235.
Update graph schema to latest spec, fixes #199
Fixed a nasty bug in WirePattern output queue.
Merge pull request #245 from trustmaster/master

Fixed a bug in WirePattern output queue