Change logs

• Release v0.19.0
• Release v0.18.0
• Release v0.17.0
• Release v0.16.0
• Release v0.15.0
• Release v0.14.0
• Release v0.13.0
• Release v0.12.0
• Release v0.11.0
• Release v0.10.0
• Release v0.9.0
• Release v0.8.0
• Release v0.7.0
• Release v0.6.0
• Release v0.5.0
• Release v0.4.0
• Release v0.3.0
• Release v0.2.0
• Release v0.1.3
• Release v0.1.2
• v0.1.1
• v0.1.0
• v0.1.0a2