Merge branch 'release_candidate' into develop
ENH: parameter by reference and const-correctness in Import / Export
Export Lineage and TrackFamily tables

Here is the order tables (related to tracks) get exported:
* Track
* Lineage
* TrackFamily
WIP: Import lineages

Move after saving track into track table, saving lineages into the lineage
table.

TODO: take care of TrackFamily
BUG: Fix #117

Need to make sure the id to be deleted is in the container
WIP: import of trackfamily and lineage tables into the database
FIX: wrong ending condition in while loop
Replace TrackID* in trackfamily table before saving
Fill up MapTrackFamilyIDs which maps ids from import file to DB ids

TODO: Update Tracks (with new TrackFamilyIDs)
WIP: not compiling
WIP: show only current tracks
ENH: only show tracks which interesect current time point

NOTE: loading current T is a much more complex issue
NOTE: loading current T might not be useful since tracks are fairly lightweight
Modify TrackFamilyIDs in daughter tracks
ENH: Correctly import / export lineages

lineage and trackfamily are perfectly exported and imported
ENH: Create a method to save track family entities
Remove misusage of OpenMP for loop in Import
Merge branch 'ExportLineage' into develop
Remove misused omp stuff
PERF: just check first and last element of map to show/hide track
Merge branch 'release_candidate' of github.com:gofigure2/GoFigure2 into release_candidate