Fixes #4206: Corrected English grammar - especially on keywords: "informations" (which word doesn't exist), "every" and "each"
Merge pull request #47 from VinceMacBuche/bug/4206/fix_english

Fixes #4206: Corrected English grammar - especially on keywords: "inform...
Merge branch 'branches/rudder/2.6' into branches/rudder/2.7