[INTERNAL] Started to edit the demultiplexing functionality.
[INTERNAL] Added tests for sflexDMulti.
[FIX] Fixed a file extension problem.
[INTERNAL] Deleted some functions that are not used anymore.
[FIX] Fixing warnings in MSVC for Mason.

The problem occured when implicitely casting long values to ints on
automatic std::pair<> conversion.
Merge pull request #406 from holtgrewe/fix/mason2_warnings

Fix/mason2 warnings
Merge pull request #403 from singerj/hotfix-knime-flexbar

Hotfix knime flexbar
[FIX] Fixed a default value problem with the output files.
Merge pull request #408 from singerj/hotfix-knime-flexbar

[FIX] Fixed a default value problem with the output files.