Create StreamReader explicitly. Didn't use FileParser
Change FileParser API and fix calls to previous API.
Merge branch 'master' of https://github.com/kzemek/FileScanner

Conflicts:
	FileScanner/Search.cs
Refactor SummaryGenerator module tests.

- Extract tests for classes: PositionTextPair and PositionTextPairGroup toseparate files.
- Remove "Internal_" prefix from SummaryGenerator tests
Merge branch 'SearchSummary'