Add an option switch between git full history and git simplified history

Bitbucket uses Git's default behavior when showing commits for a file. This can be misleading at times as Git hides commits it considers irrelevant to it's history. What this means is that all of the changes in the commit that appears missing have been overridden by other subsequent changes in the history. Even though those changes aren't relevant anymore, some users would like to see these commits shown in the history anyway. To do this locally at the command line with Git, simple add --full-history to any git log command.

Bitbucket should consider providing a way to do this in the UI, or inform the user if some commits have been hidden by Git due to History Simplification