[Text] Created Text
[Text] Created TextFactory
[Text] Added newText in Editor
[Text] Suffixed Editor open/save with "File"
[Text] Made File a Text
[Text] Moved TextFactory in a Factory sub directory
[Text] Created FileFactory
[Text] Used FileFactory in Filesystem
[Text] Injected lines instead of content in File
[Text] Removed File read and write
[Text] Removed constructor API
[Text] Used Text instead of File
[Text] Removed empty contructor from spec

As spotted by @pyrech
[Text] Added forgotten FileFactory anchor

As spotted by @pyrech
[Text] Fixed texttext typo

As spotted by @pyrech
[Text] Renamed LineContentConverter to LineBreak
Merge pull request #43 from gnugat/tech/text

Introduction of Text #40