Merge branch 'master' of https://github.com/pgroubioinfo/pgrou

Conflicts:
	headers/GAction.h
	src/gfx/GAction.cpp
	src/gfx/GSort.cpp
Merge remote-tracking branch 'upstream/master'

Conflicts:
	src/gfx/GAction.cpp
Problem of sorts overlapping solved
Merge pull request #33 from AurelienHP/master

Fixing Move/Export Preferences/Import Preferences bug
Merge pull request #35 from ThomasC44/master

Problem of sorts overlapping solved
Second part of actions : dotted bounds
Merge branch 'master' of https://github.com/pgroubioinfo/pgrou
Merge pull request #36 from florem92/master

Dotted bound
new drawing of a hit from a process to itself (sourcePoint != targetPoint anymore)
Merge pull request #37 from florem92/master

new drawing of a hit from a process to itself (sourcePoint != targetPoint anymore)
Bugs solved : superposition and vertical switching
Merge branch 'master' of https://github.com/pgroubioinfo/pgrou
Merge pull request #38 from ThomasC44/master

Debug : Sort overlapping and horizontal/vertical switching
Installing millisecond-sensitive timer to compare old and new application performances