update bn-BD translation
Merge pull request #164 from MichaelKohler/addbntrans

update bn-BD translation
fix nesting tag
Merge pull request #165 from MichaelKohler/fixnesting

fix nesting tag
add missing english string
Merge pull request #167 from MichaelKohler/terminator

add missing english string
Merge remote-tracking branch 'upstream/master'
updating list of possible languages to set selected language