Code base from private repo

This marks the start of the open source Android Steam chat application!
Revert "Code base from private repo"

This reverts commit 013ddc47fba8962189904168081cebfab0c6e469.
Revert "Revert "Code base from private repo""

This reverts commit eef7d36286031e8a80a76b4e73c69caed187515e.