3.0.0-alpha.4

Fourth alpha release

• Do not build cbc-bench if compiler does not support C++11
• CCBC-1034: Do not enable collections automatically. When user disabled collections, the library should not enable it automatically
• CCBC-1024: per-operation KV timeouts
• CCBC-1057: Support enhanced prepared statements
• Allow to specify client_context_id for N1QL query
• GCCCP (G3CP) implementation
• CCBC-1056: Workaround for H_collections_get_cid segfault due to NULL ext field in response
• CCBC-983: Example for external libuv loop
• Implement better benchmarking tool (cbc-benchmark):
  • smooth workload generator (no saw-shaped graph)
  • better support of writes with durability
  • interactive shell
• CCBC-1052: remove spatial views from API
• CCBC-600: Use bucket not found error if select bucket fails
• CCBC-1055: use lcb_assert wrapper instead of assert(3). Do not include assert.h if NDEBUG defined
• CCBC-866: track invalidated active_provider_list using unique ID