Merge pull request #5 from Haugen/master

Proposed language fixes for chapter 1, Introduction
Changed tenses in chapter summary
Tempus change and and fixed misspelled word.
Sentence structure change
Separated a sentence into two.
Simplified a sentence.
Minor sentence changes to make it clearer.
Uppercase initial letter for Node and Git
Removed a comma.
Added a dash between words and added a comma to a sentence.
Added a comma between words.
Added a dash between words.
Added dashes and minor sentence change.
Minor sentence change
Update a-vocabulary.md.erb

Improved translation.
Merge pull request #7 from JoarSvensson/patch-1

Update a-vocabulary.md.erb
Ett istället för en låter bättre.
Changes in the 'packages notice' box.
Merge branch 'master' of github.com:DiscoverMeteor/DiscoverMeteor_sv