Version 0.2.12-beta-release

Updates introduced since 0.2.11-beta-release

• 642a8e5 Upgrade backend dependencies - (NI) 4AC3E3D5FDD208F7 U
• d2729e1 Upgrade frontend dependencies - (NI) 4AC3E3D5FDD208F7 U
• 8f3a8d2 Clarify the "The time difference is beyond operational limit" error a little bit better - (NI) 4AC3E3D5FDD208F7 U
• b94b19d Remove the long jd links as it makes it hard to format the document - (NI) 4AC3E3D5FDD208F7 U
• 7c26123 No longer cache the landing page (/). This will resolve the problems caused by page caches - (NI) 4AC3E3D5FDD208F7 U