Fixed indentations

As workaround for IDEs headers are added to CMakeLists.txt as any other cpp file
Added note about timeout option for write_cache
Added cache and bulk methods to elliptics service
Depend on cocaine >= 0.10.5, not counting prereleases
Merge pull request #124 from euroelessar/master

Added bulk_read, cache_* operations to elliptics service
Merge branch 'master' of github.com:reverbrain/elliptics
v2.24.8.0
Include correct json headers