conversation list: add contact search with dialer

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

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

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

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

...app/src/main/java/cx/ring/fragments/CallListFragment.java

.../app/src/main/java/cx/ring/fragments/DialingFragment.java

...pp/src/main/java/cx/ring/views/CredentialsPreference.java

ring-android/app/src/main/res/anim/contact_fadein.xml

ring-android/app/src/main/res/layout/frag_call_list.xml

ring-android/app/src/main/res/layout/frag_contact_list.xml

ring-android/app/src/main/res/menu/call_list_menu.xml

ring-android/app/src/main/res/values/strings.xml