android: first publishable implementation of Ring on Android

compile.sh

configure.sh

ring-android/.idea/misc.xml

ring-android/app/app.iml

ring-android/app/build.gradle

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

...c/main/java/cx/ring/adapters/AccountSelectionAdapter.java

...pp/src/main/java/cx/ring/adapters/ContactPictureTask.java

...d/app/src/main/java/cx/ring/adapters/ContactsAdapter.java

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

.../src/main/java/cx/ring/adapters/SectionsPagerAdapter.java

...rc/main/java/cx/ring/adapters/StarredContactsAdapter.java

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

...ndroid/app/src/main/java/cx/ring/client/CallActivity.java

...pp/src/main/java/cx/ring/client/ConversationActivity.java

...ndroid/app/src/main/java/cx/ring/client/HomeActivity.java

...src/main/java/cx/ring/client/NewConversationActivity.java

...c/main/java/cx/ring/fragments/AccountWrapperFragment.java

...in/java/cx/ring/fragments/AccountsManagementFragment.java

.../main/java/cx/ring/fragments/AudioManagementFragment.java