creation of transifex sources and conf for upload

creation of current needed .po files for translation of docs

these .po files are uploaded to transifex qgis-documentation project via
    tx -s push
cleaning up all obsolete cookbook .po files

these .po files are not valid anymore because of the renmaing of the
rst source files
the same .po files from 1.8 branch (part of which are translations) will be
copied into master (and renamed) and pushed to transifex
adding removal of .mo file to springclean
adding some new source po files
copy translations from 1.8 branch to master

leave gentle_intro sources as is, because translation there is done in master
russian merged, and as uploaded to transifex
fix for transifex config

accidently old cookbook resources were added
remove pulldocsources.sh (only needed for website)
dutch for transifex
german for transifex
italian for transifex
adding french for transifex
addnig japanese for transifex
hindi for transifex
pt_PT for transifex
pt_BR for transifex
es for transifex
update pt_BR for transifex
toggle i18n