Temporarily ignore unknown file extensions
Temporarily ignore unknown file extensions

The user should have the freedom to create new file extensions
to indicate the content of the data file depending on how
the data was procesed. The presently used fixed map of extensions
will be removed; For now, error logging on an extension which
is not in the map was temporarily disabled.

kmuzalewska/j-pet-framework,kmuzalewska/j-pet-framework,kmuzalewska/j-pet-framework,kmuzalewska/j-pet-framework,kmuzalewska/j-pet-framework