ZipMany with conformance changes
Update Observable.java

Javadoc changes:
* add links to RxJava wiki
* correct obsolete <img> urls
* remove unneeded version string from Linq URLs
* standardize javadoc formatting
* a few other minor javadoc corrections
Operators: And, Then, When
Issue #23, Issue #88, Issue #100
Update Observable.java

Correcting for overzealous search-and-replace in javadoc comments
Empty subscribe
Merge pull request #508 from benjchristensen/empty-subscribe

Empty subscribe
Unit Tests and SuppressWarnings

Added tests while validating pull request.

This fixes issue https://github.com/Netflix/RxJava/issues/387
Merge pull request #510 from benjchristensen/pull-495-zip

BugFix: Zip
Merge pull request #506 from akarnokd/AndPattern2

Operators: And, Then, When