links to sdks and documentation
removed absolute top positioning on sessions forms; new links on top nav
Removed unused route by all API versions
Added sandbox_scores and sandbox_achievement_scores tables
Extracted common Score model into BaseScore, ditto for AchievementScore
Support for sandbox scores and sandbox achievement_scores
Merge remote-tracking branch 'origin/todd_09_17' into development
best_score methods on the Score model specific to 1.0 API - no time range