Merge pull request #31 from eile/move

Move hbp vocabulary into consistent place
Fix publisher unit test
Merge pull request #30 from eile/master

Sharable Receiver base class for Subscriber (#29)
OPT: use lunchbox::Buffer in place of std::vector. Yields up to 10% for remotemem livre data source
Merge pull request #32 from eile/master

OPT: use lunchbox::Buffer in place of std::vector
Merge branch 'master' of https://github.com/eile/zeq
Merge branch 'master' of https://github.com/HBPVIS/zeq
Merge branch 'master' into broker