spanish screenshots for training manual

modules 1-13 covered, some screenshots missing will be corrected for
next version
supporting xelatex PDF output
supported xelatex PDF output for Korean and Hindi
Merge pull request #242 from sanak/xelatex_manual_en_v2.2

Ver 2.2 Xelatex support for Korean and Hindi
using newer image for ko and hi
resurrect next/prev buttons for docs 2.2
forgot these files for prev/next
Merge branch 'manual_en_v2.2' of github.com:qgis/QGIS-Documentation into manual_en_v2.2
styling index page
remove after succesfull build
adding forestry module to 2.2 (already in master)
Merge pull request #241 from egonzale/manual_en_v2.2

spanish screenshots for training manual
new string update, and tx source push for forestry manual
adding Finnish as language to build
script clean up
add fi to dropdownwq