Android UI for reading a message (text/plain only for now).

briar-android/AndroidManifest.xml

briar-android/res/drawable-hdpi/social_reply.png

briar-android/res/drawable-mdpi/social_reply.png

briar-android/res/drawable-xhdpi/social_reply.png

...src/net/sf/briar/android/contact/ContactListActivity.java

.../src/net/sf/briar/android/contact/ContactListAdapter.java

...c/net/sf/briar/android/messages/ConversationActivity.java

...rc/net/sf/briar/android/messages/ConversationAdapter.java

...d/src/net/sf/briar/android/messages/ConversationItem.java

...t/sf/briar/android/messages/ConversationListActivity.java

...et/sf/briar/android/messages/ConversationListAdapter.java

...c/net/sf/briar/android/messages/ConversationListItem.java

...rc/net/sf/briar/android/messages/ReadMessageActivity.java

briar-api/src/net/sf/briar/api/db/MessageHeader.java

briar-tests/src/net/sf/briar/db/H2DatabaseTest.java