v3.6.0-alpha01

• Added new progress measurement units: steps, reps, kilograms, calories (87423c5, cc5027a).
• Removed Google's Analytics (3bd61cc) and Crashlytics (e599b9e).
• Fixed a crash happening if a timer is started twice for the same skill (36ff56b).
• Fixed a crash happening in the skill list fragment while reordering/grouping/ungrouping skills (bc96709).