Fix typo
Recommend using `bundle install` instead of `bundle up`
Delay defining SassFilesystemImporter

Since Sass is required lazily, SassFilesystemImporter should be defined
after it's loaded.
Allow excluding links from the internal_links checker.

Links to be excluded can be specified as a list of regular
expressions in config[:checks][:internal_links][:exclude].
Exclude more Array instance methods from forwarding.

Fixes #244
Encoding & better place for the extracted file
Merge pull request #241 from cdlm/fix-sass-requires

Lazily define SassFilesystemImporter
Update version to 3.6.1
Add 3.6.1 release notes
Merge pull request #250 from bobthecow/unforwardable

Exclude more Array instance methods from forwarding.
Fix warnings regarding {s and }s in regexes
Merge branch 'release-3.6.x' of github.com:nanoc/nanoc into release-3.6.x
Update release notes for 3.6.1
Let files_to_watch contain nanoc.yaml instead of config.yaml by default
Update release notes for 3.6.1
Naming checks: be as flexible as rules
Fix deploy command to find custom deployers

Add `nanoc deploy -D|--deployers` to list available deployers, instead of
building a dynamic command description.

Fixes #256
@ddfreyne said --list-deployers is nicer
Tidy up
Make --list & --list-deployers exclusive