Changes

Greenkeeping

• Allow Karma@2 in peerDependencies, #238 (thanks @abraham)
• Update remap-istanbul to ^0.10.0, #239 (thanks @abraham)

Bugfixes

• Support for .js in compiler paths, correct documentation for alias, #223 (thanks @aktraore)
• Check if the file exists before collecting errors, #226 (thanks @baywet)
• Resolve the real path for symlinks to avoid duplicate package bundles, #228 (thanks @cherrydev)
• Lock source-map version to 0.6.1, #240 (thanks @niels1voo, @jukibom)
• Handle missing source map files gracefully, #241 (thanks @rmja)