let cabal-install figure out the dependencies of the lambdabot sub-packages
teach travis build about lambdabot-trusted
fix up network dependency to support split network-uri package
let lambdabot-haskell-plugins depend on lambdabot-trusted

This fix is due to Javier López (see #85).

See also 0fc79d3b87faf1157d934171ea58a07970f37da1.
follow haskell-src-exts-1.16 API changes

- UnGuardedAlt -> UnGuardedRhs
- dropped 3rd field of PatBind
Merge remote-tracking branch 'nomeata/master' into features
Merge remote-tracking branch 'purefn/master' into features
disable a couple of plugins
increase maximum message length
update @version output
patched libraries
log some system commands
modify @faq output
add current configuration and supporting scripts
update Pristine.hs