Fix joinGet with nullable return types.

Drop unused ALL_ADDRESSES const (fixes poco 1.7.6+dfsg1-5+deb9u1)

With poco 1.7.6+dfsg1-5+deb9u1:
  5  0x00007f9921e48085 in __cxa_throw ()
  6  0x00007f9918dfca88 in Poco::Net::IPAddress::IPAddress(void const*, unsigned int, unsigned int) () from /usr/lib/libPocoNet.so.46
  7  0x00007f9918dfcf91 in Poco::Net::IPAddress::operator&(Poco::Net::IPAddress const&) const () from /usr/lib/libPocoNet.so.46
  8  0x00007f991737a623 in DB::AllowedClientHosts::IPSubnet::set (this=0x7f991742afa0 <DB::(anonymous namespace)::ALL_ADDRESSES>, prefix_=..., mask_=...) at AllowedClientHosts.h:146
  9  0x00007f991737a2da in DB::AllowedClientHosts::IPSubnet::IPSubnet (this=0x7f991742afa0 <DB::(anonymous namespace)::ALL_ADDRESSES>, prefix_=..., mask_=...) at AllowedClientHosts.h:24
  10 0x00007f991737a0a2 in __static_initialization_and_destruction_0 (__initialize_p=1, __priority=65535) at AllowedClientHosts.cpp:25

Fixes: 2e4174a5

Better colors in logs in terminal

Fixed non-deterministic test

Describe reasons when query profiler cannot work

Revert "Build fixes"

Enable terminal colors for log by default.

Add grpc contrib

Changed format for path in replicas

Add zookeeper_exception column to system.replicas table.

Use correct implementation for reinterpretAsFixedString

Fixed #5104. Return 503 status in /replicas_status if not ok

tests for #6143 and #2314

Better CREATE syntax for temporary LIVE VIEW

Make some performance tests faster.

Less flappy performance test queries

Build fixes

Added disks section for stateless functional testing.

translation to Russian MOVE PARTITION TO TABLE

Implement bit operations for FixedString datatype for doing bits operation on a bitset

Prevent abort on shutdown if the fs is readonly