Updated for maven central.
Updated for maven central.

gcacace/android-signaturepad,prashant31191/android-signaturepad,nicewarm/android-signaturepad,hgl888/android-signaturepad,msdgwzhy6/android-signaturepad,robinbuerkli/android-signaturepad,aitbaali/android-signaturepad,coffex/android-signaturepad,phantuanphong/android-signaturepad