Issue 10408 - Fix compile error with multiple-function reduce on a const range.
Fix save in filter.

filterBidir was actually correct.
Merge pull request #1363 from monarchdodra/filterSave

Fix save in filter.
Merge pull request #1361 from irritate/issue_10408

Issue 10408 - Fix compile error with multiple-function reduce on a const...
Issue 5692 - Fix printing of complex numbers with a negative imaginary part.
Removes redundant plus sign before the negative sign.
http://d.puremagic.com/issues/show_bug.cgi?id=5692
Merge pull request #1366 from irritate/issue_5692

Issue 5692 - Fix printing of complex numbers with a negative imaginary p...
Fix issue 313 & 314