Origin Beta 8.3.7.3619

# Fixes an issue that caused downloads to go past 100% completion.
# Users installing the Russian disc version of BF3 should no longer be improperly asked to insert disc 1.
# Fixes a number of issues that previously caused the Origin client to crash.
# Improves the performance of the Origin browser when loading flash-based applications.
# Addresses a number of minor localization and user experience issues.
# Adds the ability to download and install third-party games from Origin.
# Improves the performance of the game update functionality.
# Made changes so that Origin now sets permissions in ProgramData\Origin by default.