sinobu v2.7.0

Features

• Add Signal#pair. (c115337)
• Drop all Signal#maps methods. (4200ccb)
• Drop Signal#delay(long count), use #buffer(long, long) instead. (03d8d4e)
• Drop Signal#recover and #retry with configurable parameters. (d811713)
• Drop Signal#repeat with configurable parameters. (7053181)
• Drop Signal#skipError without parameters. (ada0043)
• Drop Signal#take and #skip by duration, use #xxxUntil instead. (bbf51d5)
• Drop Signal#take(Collection) and #skip(Collection). (ab7bc80)
• Drop Signal#takeUntil(Object) and #skipUntil(Object). (20eab42)
• Drop Signale#recover and #retry with error type. (7f739ed)