update PackageUtils.java

	modified:   src/dolphin/android/util/PackageUtils.java
add GoogleDriveHelper

	new file:   src/dolphin/android/net/GoogleDriveHelper.java
add padding res

	modified:   res/values/dimens.xml
update support lib and build file

	modified:   MyUtilsLibrary.iml
	modified:   libs/android-support-v4.jar
Merge branch 'master' of https://github.com/DolphinWing/MyUtilsLibrary

Conflicts:
	src/dolphin/android/net/GoogleDriveHelper.java