Merge pull request #50 from appglu/development

Development
Merge pull request #51 from appglu/development

Adding static keyword
Merge pull request #52 from appglu/development

Adding sender id required method
Merge pull request #53 from appglu/development

Development
Update README.md
Update README.md
Update README.md
Merge pull request #54 from appglu/development

Development
Merge pull request #55 from appglu/development

Changing analytics log to verbose level
Merge pull request #56 from appglu/development

Changing test URL
Update README.md
Update README.md
Update README.md
Update README.md
Update README.md
Update README.md
Update README.md
Update README.md
Update README.md
Update README.md