Remade method GetPages
Added URL validation
Fixed code in in accordance with "code_conventions"
Change "Check" methods
Merge remote-tracking branch 'upstream/master'

Conflicts:
	lib/practice/AnalizerTest.cs
	lib/practice/Analyzer.cs
	lib/practice/Report.cs
Merge
Merge pull request #3 from alexZhukov/master

Remade method GetPages