Restore appcompat-v7:21.0.+ instead of appcompat-v7:21.0.3
Restore appcompat-v7:21.0.+ instead of appcompat-v7:21.0.3

Nehasing/Nehachat,Nehasing/Nehachat,matrix-org/matrix-android-sdk,matrix-org/matrix-android-sdk,matrix-org/matrix-android-sdk,Nehasing/Nehachat,Nehasing/Nehachat