Merge pull request #4 from euroelessar/master

Update to elliptics 2.21
Use correct include path
Test app should use new elliptics interfaces
Grape version update: 0.5.2
Updated dependencies
Let grape test be read performance test
Fixed elliptics deps
Added run-io flag - it runs write + multiple reads of the same key
Grape version update: 0.5.3
Us ioremap::elliptics::error as base exception
Sycned with upstream elliptics and 0.10.0-rc4 cocaine binary loader
v0.5.4
Fixed compilation error about sph->binary_size
Forgot to export proper initialize()
Do not send \n symbol in reply - this breaks fine prints
v0.5.5
Updated debian deps
jsoncpp had been packaged, so removing private copy of that library
removing previous incarnation of grape
Queue components (queue, driver, testerhead) fused together under the
umbrella name "grape". Old stuff removed (may be to reincarnate later).