Release 3.0.0

• update package description (b822e13)
• Merge branch 'feature/v3' (cc0b319)
• update readme (d487779)
• bump dependencies (c502418)
• remove "verbose" property (a3ad57f)
• re-add testing in FF (6608337)
• revive and simplify (ade52ff)
• fix demos (25b4076)
• get decorators to work (47bda4c)
• change the annoying class name in tests (19fd8c7)
• replace TypeScript's private with native private (fe42a42)
• use a less annoying class name (4f628b0)
• inline a few dom manipulation functions (1ac1f12)
• throw out deprecated @sirpepe/oneventmixin (aeeb5fc)
• update dependencies, make the project build again (6a59a12)