Create a Core namespace with utilities
Move string extensions to Core
Move ReadAllBytes to FileUtil
Merge pull request #287 from SubtitleEdit/tools

Creation of a Core namespace
Formatting.
Updated French dictionary link (old link was broken9
Fixed problem with TarHeader...
Fixed TS image parsing (refact bug)
Added first unit test with external file
Minor refact using TarReader
Added mkv file test
Working on mkv unit tests
Added unit test for reading Tar files
Mp4 fix + unit test
Fixed a few leaks
Fix #281
Fixed a few resource leaks
Update eng_OCRFixReplaceList.xml.
Update eng_OCRFixReplaceList.xml.
Added a slightly faster IndexOf method