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(cherry picked from commit bb6642a8)

(cherry picked from commit 601c9389)

(cherry picked from commit 838a1633)

(cherry picked from commit 3ac9557d)

Om5.1 code reduction

Significant reduction of includes

See merge request !31

(cherry picked from commit bc25c5b7)

(cherry picked from commit ec8936bf)

(cherry picked from commit 201dee45)

(cherry picked from commit 422b3dc6)

closes #11

(cherry picked from commit 4cc30630)

(cherry picked from commit f134510f)

Conflicts:
	.gitignore

Conflicts:
	src/Python/Vector.hh

Vec2 issues



See merge request !24