LRDOCS-692 Create Liferay 6.2 API changes chapter.
LRDOCS-692 Introduce the API chapter
Merge pull request #602 from jhinkey/liferay-api-changes

Liferay api changes chapter
update type in the text

"use use" to "use"
Merge pull request #37 from afshing/patch-1

update type in the text
Merge branch 'master' of github.com:sez11a/liferay-docs