Auto merge of #42999 - behnam:ucd10, r=alexcrichton
Auto merge of #42999 - behnam:ucd10, r=alexcrichton

[libstd_unicode] Upgrade to Unicode 10.0.0

Update `libstd_unicode`'s data tables to Unicode 10.0.0, as released on 2017 June 20: http://www.unicode.org/versions/Unicode10.0.0/

aidancully/rust,aidancully/rust,GBGamer/rust,graydon/rust,aidancully/rust,graydon/rust,GBGamer/rust,aidancully/rust,GBGamer/rust,GBGamer/rust,GBGamer/rust,aidancully/rust,aidancully/rust,GBGamer/rust,graydon/rust,graydon/rust,graydon/rust,GBGamer/rust,GBGamer/rust,graydon/rust