misc: update copyright date

ring-android/app/src/main/AndroidManifest.xml

...in/java/cx/ring/about/AboutBottomSheetDialogFragment.java

...ndroid/app/src/main/java/cx/ring/about/AboutFragment.java

...c/main/java/cx/ring/account/AccountCreationModelImpl.java

...src/main/java/cx/ring/account/AccountEditionActivity.java

...rc/main/java/cx/ring/account/AccountEditionPresenter.java

...app/src/main/java/cx/ring/account/AccountEditionView.java

.../src/main/java/cx/ring/account/AccountWizardActivity.java

...id/app/src/main/java/cx/ring/account/AccountsAdapter.java

...rc/main/java/cx/ring/account/ConfirmRevocationDialog.java

...roid/app/src/main/java/cx/ring/account/DeviceAdapter.java

...ain/java/cx/ring/account/HomeAccountCreationFragment.java

...rc/main/java/cx/ring/account/ProfileCreationFragment.java

...app/src/main/java/cx/ring/account/RegisterNameDialog.java

...app/src/main/java/cx/ring/account/RenameDeviceDialog.java

...ain/java/cx/ring/account/RingAccountCreationFragment.java

...main/java/cx/ring/account/RingAccountSummaryFragment.java

...rc/main/java/cx/ring/account/RingLinkAccountFragment.java

...p/src/main/java/cx/ring/adapters/ConversationAdapter.java

...oid/app/src/main/java/cx/ring/adapters/NumberAdapter.java