Release 8.0.0 and update release notes

Release 8.0.0-beta2 and update release notes

Release 8.0.0-beta and update release notes

Release 7.6.0 and update release notes

Release 7.5.1 and update release notes

Release 7.5.0 and update release notes

Release 7.4.1 and update release notes

Release 7.4.0 and update release notes

Fix java doc, Update release notes and Release 7.3.0

Fix appium#1208 (appium#1209)

This reverts commit 6d0de81.