0.18.0

• Upgrade most dependencies to their current versions (#183):

  • env_logger 0.7
  • reqwest 0.10
  • error-chain 0.12
  • url 2.1
  • sentry-types 0.14

• Remove the log and env_logger integration from default features (#183).

• Fix backtraces for newer failure and backtrace versions (#183).

• Fix compilation of the with_rust_info feature (#183).

• Add "panics" sections to functions that may panic (#174).

• Document all feature flags consistently.