Sequence now contains a list of FrameRange

* No more global step on the sequence.
* missingFiles notion has changed. Now it represents all the missing
frames between first and last frame, without step consideration.
Merge branch 'master' into dev_stats

Conflicts:
	src/filesystem.hpp
Add travis build configuration
compilation fix
Merge branch 'dev_travis' into dev_stats
fix uninitialized var
fix tests build
add tests to travis
add FrameRangesSubViews
Adding browse function with item parameter to prevent accent problemes
Adding link type to manage symbolic links
Adding file type detection into statSequence function
Adding new option detection to manage .dot folder (useful for scan program)
Fixing bug : Don't multiple each sequence file sizeOnDisk size by 512
Removing debug print code
API refactoring

* Remove FileObject and inheritance
* ItemStat clean and minor renaming
* Sequence has no more information about the containing folder
* Access to file system is only done in filesystem.cpp and ItemStat.cpp
Java binding: add UTF8 to Latin1 conversion
Adding simple Java program to test sequenceParser java binding
Adding explode sequence method
Adding folder path to filename when explode a sequence