Translated into Spanish
Changed encoding to UTF-8
Translated into Spanish
Updated according to comments
Merge pull request #16 from jcarlosgarcia/json-introduced-mongo-shell

Completed translation: "JSON introduced through the Mongo Shell"
Added first 15 lectures of week 2 in order to begin translation.
Added utility for generate correct subtitle names
Translated Introduction_to_Week 2, resolved #18.
Merge branch 'master' of https://github.com/MongoDBPeru/subte
Translated 02-CRUD... resolves #19
Removing duplicated subtitles in mappings
Merge branch 'master' of https://github.com/MongoDBPeru/subte
Fixed regex to include $ character in generator
Fixed subtitle names on Week2
Generating subtitles for Week2
Generating subtitles for Week3
Generating subtitles for Week4
Generating subtitles for Week5
Generating subtitles for Week6
Generating subtitles for Week7