moving thumbnail_control.js to the panojs library
removing roi preview from bird eye view
fixing ROI to follow mouse cursor when pressed down
fixing toggleMinimize event as gets handled by too many handlers

reverting changes from https://github.com/openmicroscopy/openmicroscopy/pull/1708/files#diff-6cedf73ec464ba34acacbd07b15060eeL124
smart float formatting
merge develop -D org: PR 2160 (Warning dialog before deletion of linked images)
merge develop -D org: PR 2165 (Inplace file path)
merge develop -D org: PR 2182 (Read only flag)
merge develop -D org: PR 2207 (Implemented maximum file size limit for import)
merge develop -D org: PR 2235 (customizing 'Orphaned images' container)
merge develop -D org: PR 2240 (Search image id 12151)
merge develop -D org: PR 2253 (limit webtest getObjects() to 10)
merge develop -D org: PR 2256 (Tablet drag handling)
merge develop -D org: PR 2258 (Truncate js tree dynamically 12161)
merge develop -D org: PR 2261 (Remove duplicate setting of uint16 bit size)
merge develop -D org: PR 2268 (Remove last file annotation)
merge develop -D org: PR 2269 (ROI improvements)
merge develop -D org: PR 2270 (Disk space 12126)
merge develop -D org: PR 2280 (Fix indirect import in webgateway)
merge develop -D org: PR 2291 (Zoom display)