Merge pull request #1 from chamilo/1.9.x

1.9.x
Merge pull request #4 from chamilo/1.9.x

1.9.x
Merge pull request #5 from chamilo/1.9.x

1.9.x
media_question: Check for values before using them

Don't blindly use the indexes directly in the code, instead gracefully
fallback for non mandatory parameters and throw a Exception over the
mandatory one. Same for course_id set by ::updateCourse().
Homepage changes for all languages -refs #6064
Hompage Changes for all languages -refs #6064
Changing lang variable -refs #6064
Fixing Indentation
Fixing Indentation
fixing indentation
Fixing indentation
Fixing indentation
Fixed issue removing system watermark - refs #6587
Merge branch '1.9.x' of github.com:chamilo/chamilo-lms into 1.9.x
Minor - improved presentation of watermark image in settings - refs #6587
Minor - Remove check on MAX_FILE_SIZE in the admin settings update as it is NOT a setting for Chamilo, just a setting for the form
Fixed right-floating footer in all Chamilo styles
gitignore: add .DS_Store from OSX
Merge pull request #117 from diegoe/gitignore_ds_store

gitignore: add .DS_Store from OSX
Merge pull request #107 from diegoe/media_question_fixes

media_question: Be careful with parameter indexes