Merge pull request #1 from keiichiroy/locale-ja-request

Japanese translation based on release number 2.1.beta. 
Thanks keiichiroy!
improved user list report
cleaner constraint report context
updated tour
updated tour
Added Japanese and Chinese translations
updates for 2.1 translations + bug fix in menu translations
Updated Dutch translations for 2.1
preparing french translation strings for 2.1
preparing italian translation strings for 2.1
preparing taiwanese translation strings for 2.1
updated japanese translation strings for 2.1
updated chinese translations for 2.1
extra places where japanese and chinese language need to be added
updated command createmodel to use new transaction api
debian package update
small correction to updated command createmodel
ability to export all input data in a single spreadsheet
missing file in RPM package
adding excel export to the tour