Update version 0.4.2

Fix non-windows compile error

Fix package.yml syntax error

Update package.yml

Update README

v0.3.8 => v0.3.9

v0.3.7 => v0.3.8

Update version v0.3.6 => v0.3.7; Update rtc v0.7.6 => v0.7.7

Update version v0.3.5 => v0.3.6; Update rtc v0.7.4 => v0.7.5

Update rtc v0.7.3 => v0.7.4