Merge pull request #1 from shaitan/master

v0.5.1.1 for spec file
Removed looking for cocaine
Fixed dependencies in rpm spec

Added dependency on libswarm for libthevoid
Incremented version in rpm spec for teamcity
Incremented in other way version for timcity
Fixed compilation with recent elliptics
Fixed getting path component from url
Fixed prefix matching in thevoid
Moved to boost::thread

std::thread corrupts stack in exception
Fixed compilation on some linux stations with gcc
networkrequest::set_header should override all values
v0.5.1.2
Fixed swarm freezing on high rps or low-latency
Added non-virtual reply methods to request_stream
v0.5.2.0
Fixed network_request::set_header implementation
Added "active_connections" field to thevoid statistics
v0.5.2.1
Added libswarm-dbg package
v0.5.2.2