Added StringHelper::diff().
Replaced diff vendor.
Typo in doc [skip ci]
Another typo [skip ci]
More typos [skip ci]
More typos [skip ci]
Merge pull request #782 from lucianobaraglia/master

Typo in doc [skip ci]
Last typo fixes in guide - I swear - [skip ci]
Fixes #783.
Merge pull request #784 from lucianobaraglia/master

Last typo fixes in guide - I swear - [skip ci]