ImageSet: added a method for intersection
S.Integers: added _eval_imageset method
imageset._intersect: removed the dependence on variable name
Merge pull request #7587 from hargup/integer_intersect

Added method of intersection for ImageSet with Integer as baseset
Fix bug in latex-printing Equivalent objects

Latex-printing an Equivalent object would only print out two
arguments, even if there are more.
Add level-0 dense matrix operations
Support for gmpy types is being added to the Matrix module in this PR like the Polys module. In this
PR, manual wrapping of each element of the matrix with a specific domain is required.
But in future work (Upcoming Level 1 of Matrix Module), the code will
figure out the domain of each element itself, as it is done in Polys Module.
Merge pull request #7601 from clsn/printfix

Fix bug in latex-printing Equivalent objects
Merge pull request #2248 from SaurabhJha/newdense

Newdense
Fix for series expansions in products of symbols with assumptions

For example:
http://nbviewer.ipython.org/gist/jrjohansson/bf7862198171b16d0ff9
Merge pull request #7617 from skirpichev/series-for-nonsymbols

rebase of #7585