Merge pull request #83 from avpatel/master

Resync mainline
Merge pull request #84 from avpatel/master

Syncup mainline tree with changes from xvisor-next tree
Merge pull request #85 from avpatel/master

Syncup mainline with changes from xvisor-next tree
Merge pull request #86 from avpatel/master

Update last commit tag for v0.2.1
Merge pull request #87 from avpatel/master

Syncup mainline with xvisor-next tree.
Merge pull request #88 from avpatel/master

Syncup mainline with xvisor-next tree.
Merge pull request #89 from avpatel/master

Syncup mainline with xvisor-next tree
Merge pull request #90 from avpatel/master

[DOCS] Update last commit tag in v0.2.3 release notes