[Upg] an improve doc for custom dev
Merge branch '1.1' of github.com:MrJuliuss/syntara into 1.1
Merge branch '1.1' into 1.2
Merge branch 'master' of github.com:MrJuliuss/syntara
Merge pull request #70 from OtkurBiz/master

add uyghur language
add uyghur language
rename language code
[Upg] prepare RTL language support
[Upg] default to lrt
[Upg] breadcrumbs for RTL language
Merge branch '1.1' into 1.2
Merge branch '1.2'
Merge remote-tracking branch 'upstream/master'