db-actions - Actions to be performed on the batabase

	Commit message (Collapse)	Author	Age
*	implemented a function getting a stars timestep	Emile	2019-02-17
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*	refactored getStar	Emile	2019-02-17
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*	exported the get star function	Emile	2019-02-17
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*	added a function returning a list of all star ids	Emile	2019-02-16
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*	The insert star function now returns the starID of the inserted star	Emile	2019-02-16
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*	Fixed inserting a star into a specified timestep	Emile	2019-02-15
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*	updated the calcAllForces function now using the given galaxyindex to ↵	Emile	2019-02-14
\| \| \| \|	calculate the force acting on a star
*	working!	Emile	2019-02-13
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*	Implemented the function GetListOfStarsTree returning a list of all stars in ↵	Emile	2019-02-13
\| \| \| \|	the tree with the given index
*	added the database actions, development started in the db-container repo, ↵	Emile	2019-02-13
	for more info, see those commits