Spanish translation updated

Updated the Spanish translation XML files
Translation work done by Diego Bernardi
Translation sponsored by Panacea Supplies
Merge pull request #136 from dennis-sheil/translation-panacea

Spanish translation updated
Spanish localization update: author info
Merge branch 'master' into ice-cream-sandwich
file action is back
Merge branch 'master' into ice-cream-sandwich
file action is back
Merge branch 'master' into ice-cream-sandwich
Merge branch 'master' of github.com:geometer/FBReaderJ
Merge branch 'ice-cream-sandwich' into ics-litres
Merge branch 'master' into ice-cream-sandwich
Merge branch 'ics-litres' of github.com:geometer/FBReaderJ into ics-litres
Merge branch 'ice-cream-sandwich' into ics-litres