New method handleMultiFileUpload and a helper method fileUploadHelper to hold identical code of handleFileUpload and handleMultiFileUpload.

handleMultiFileUpload allows the upload of multiple files at once.
It is additional code that should not break anything for existing portals.

The matching VHIRL-33 commit on VHIRL-portal shows the working client side changes needed for multifileuload.
pushing travis config
Merge pull request #8 from alexkrumpholz/feature/VHIRL-33_multifile_upload

New method handleMultiFileUpload and a helper method fileUploadHelper to...
AUS-2541:Evaluation/Migration from Artifactory to Nexus
Merge branch 'master' of https://github.com/AuScope/portal-core
Rolling back repo to test build on server
Recommitting changes to point repo to cgsrv8 nexus
Reverting repository changes. Mirroring to be done on settings.xml instead
Allow GoogleOAuth2UserDetailsLoader subclasses access to members
Merge pull request #9 from bencaradocdavies/master

Allow GoogleOAuth2UserDetailsLoader subclasses access to members
AUS-2543:Include the option to close the WMS layer selection popup
Merge branch 'master' of https://github.com/AuScope/portal-core
AUS-2262: When portal starts up before the registry does, it fails and hangs on retrieving csw records
AUS-2544: Remove "remove layer" button as it seats too far south for anyone to notice. Streamline the active layer UI
Added JS grid panel plugin for embedding inline widgets
Added row expander to jsimports
Fixing XML parser to make Java8 happy
Rigged OWSExceptionParser up with DOMUtil
InlineContextMenu now supports aligning actions left/right/center
Need Joda Time version 2.2 to satisfy another dependency. Passes portal-core maven tests