Find full path to nested errors

Fixes #202
Little update to README.md file to include index do string.guid() and string.isoDate()
Fix number allows string. Closes #227
hoek 2.0. Closes #228
Coverage for #229
Coverage. Closes #229
version
move migration to issues
Remove languagePath. Closes #231
Cast liternals to schema. Closes #237
version
compile. Closes #196
Merge branch 'master' of github.com:spumko/joi
`description` is defined on `any`

Fixes small omission to make the heading for `description()` match the headers for the methods around it.
Indents validate options in README
Merge pull request #208 from paulillo/doc-update

Small documentation update
Merge pull request #218 from strathmeyer/patch-1

`description` is defined on `any`
Merge pull request #219 from strathmeyer/patch-2

Indents validate options in README
Immutable schema objects. Closes #221
Update README.md