[issue-167] Support aar package
[issue-168] Add existAttributeValue() method in Utils, and call that in init method (instead of calling existAttributeIntValue method)
[issue-169] Deprecate existAttributeIntValue methods
[issue-170] Resolve wrong position of google style layouts in honeycomb version
[issue-171] Set DEFAULT_REFRESHABLEVIEW_REFRESHING_BAR_SIZE to WRAP_CONTENT
[issue-172] Force setting mMode to PULL_FROM_START when SDK version is 2.x or lower
Update README.md
Update version in gradle.properties
Add some omiited properties in gradle.properties