General updates, corrections, removed dead links.

[JoGSal]

[Update shadowsocks-rust.yaml] Updated version information and download location

[Update obfs4.yaml] Updated version, date and download link

[Update shadowsocks-android.yaml] Updated version, date and download link

[Update ReplicantSwift.yaml] Updated version, date and download link

[Update meek.yaml] Updated version, time, download link

[Update replicant.yaml] Updated version, date, download link, package documentation link

[Update iptproxy.yaml] Updated version, date and download links.

[Update optimizer.yaml] Fixed repository broken link

[Update meek.yaml] fixed download link

[Update shadowsocksx-ng.yaml] Updated version, date and download link.

[Update shadowsocks.yaml]

Updated repository link

[Update marionette.yaml] removed empty icon

[Update meek.yaml] Updated Maintainer email

[Update meek.yaml] fixed typo on link

[Update snowflake.yaml] Updated version, date, download link and maintainer

[Update shadowsocks-rust.yaml] Updated contact link

[Update shadowsocks-windows.yaml]( Updated description

[Update iptproxy.yaml] Updated news link

[Update dnstt.yaml] Updated repository link and clarified license status

[Update lampshade.yaml] updated version info

[Update snowflake.yaml] Fixed maintainer

[Update dnstt.yaml] Updated License information