Adding API doc links to OMERO docs front page
omero: Remove Ice 3.3 and make 3.4 the minimum, 3.5 the default
sysadmins: Update diagnostics to use current versions
windows: Update server diagnostics
windows: Remove stray "JDK6"
Cpp: Remove Ice 3.3 reference
troubleshooting: Replace Ice 3.3 reference
developers: Refer to current ZeroC documentation
server-installation: Wording matches 5.0 changes
ant: Default all properties and handle empty vars in conf.py
Merge pull request #758 from hflynn/rebased/develop/api-links

Adding API doc links to OMERO docs front page (rebased onto develop)
ant: Correct property defaults
Java.txt: Correct indentation
Merge pull request #766 from rleigh-dundee/ant-propertydefaults

ant: Default all properties and handle empty vars in conf.py
Rephrasing CONTRIBUTING re: branch for PRs
Making API doc links point at release version
Java: correct broken Ice link
Merge pull request #769 from hflynn/rebased/develop/release-api-links

Making API doc links point at release version (rebased onto develop)
Adding pyramid gen. warning to in-place import
Merge pull request #768 from hflynn/rebased/develop/CONTRIB-update

Rephrasing CONTRIBUTING re: branch for PRs (rebased onto develop)