Crout's determinant finding fixed (issue #82)
Update AbstractMatrix.java
Test message
Test file deleted
Removed unused code; computation error decreased (issue #82)
Code reformatted (issue #82)
Determinant finding method renamed (issue #82)
Accuracy of determinantByCrout increased, also added 7x7 matrix determinant test (issue #82)
Determining of computational accuracy automatized (issue #82)
Merge pull request #85 from SamoylovMD/master

Crout's determinant method fixed (fixes #82)