v0.9.0

The v0.9.0 release adds a number of new methods to match new functionality available through the Fitbit REST API. It also removes support for concepts (monthly leaderboards) that have been removed from the Fitbit REST API.

There's a big change to leaderboard support in this update; please read the notes below if you're currently using monthly_leaderboard or weekly_leaderboard -- you should update your code to use the new method before v1.0 is released.

• Add ability to target SSL Fitbit REST endpoints
• Add activity_on_date_range method
• Condense existing weekly_leaderboard and (no longer available) monthly_leaderboard into a simple leaderboard
  method. There is now only one leaderboard (weekly) so no need to differentiate in the API. The previous leaderboard
  methods are now deprecated and will be removed in v1.0.
• Add create_or_update_weekly_goal method and specs
• Add create_or_update_daily_goal method and specs
• Add daily_goals method and update documentation
• Add delete_body_fat_log method
• Add delete_body_weight_log method
• Add create_or_update_body_fat_goal method
• Add create_or_update_body_weight_goal method
• Add log_body_fat method to push a body fat measurement to Fitbit
• Add body_fat_goal method to fetch the current body fat goal
• Add body_fat method to fetch body fat measurements
• Add body_weight method to fetch body fat measurements
• For the body_weight and body_fat methods, determine a URI based on the base URI and provided options