Refactored and improved error explanations in wizard
Refactored and improved error explanations in wizard

lyoshenka/PyPagekite,pagekite/PyPagekite,pagekite/PyPagekite,lyoshenka/PyPagekite,output/PyPagekite,output/PyPagekite,output/PyPagekite,lyoshenka/PyPagekite,pagekite/PyPagekite