LibreOffice 5.2.0 Beta 2

# Bugs fixed:
* USE_AFTER_FREE+resource leak due to copypasta
* xmloff: only update the progressbar twice for every percent
* setting table border from toolbar resets "spacing to content"
* RTF import: fix handling of rpaddf{b,l,r,t}
* if there is no CurrentController, use the ScTabViewObj
* opening two docs with open document macro events can crash
* no-break space between number and percent sign
* impress: update outline text before saving
* OpenThenSwitchToDeck actually *toggles* deck visibility
* DCOUNT and DCOUNTA DatabaseField argument can be omitted
* RTF import: automatically generate names for images if needed
* minor tweaks to writer toolbars
* OpenCL: S/W interpreter throws std::out_of_range error
* unify Calc drawing toolbar with Writer
* freeze on load of specific html doc
* valgrind reported invalid reads on 1 pixel wide bitmap
* crash without java but with nlp solver installed
* OpenThenSwitchToDeck actually *toggles* deck visibility
* descend into dimension children to obtain leaf result
* A round of minor tweaks to Writer's menus
* implement Calc single toolbar mode toolbar
* crash on deleting inner join relationship
* we already have ImplGetItem from mnHighItemId here
* crash when closing a Database with macro editor open
* check for changed DataSource on all Controls on form reload
* don't add space to empty paragraph when bullet is turned off
* freeze on load of specific html doc
* easier access to set a default template when saving a template
* assume tiny shears are rounding artefacts etc and can be ignored
* crash when an extension with legacy decks is installed
* set correct parents for password dialogs
* do not increment position counter when an entry is removed
* actually multiple destination sheets are handled, follow-up
* handle autofilter search for dates correctly
* a single character may be more than 1 utf-16 code points
* crash on deleting inner join relationship
* fix undo of table AutoFormat
* new Mac shortcut for fullscreen for all apps
* crash trying To create remote folder before connected
* don't cache progress bars either
* ensure backing context of DoubleVectorRefToken...
* 1 bit masks need each byte to be reversed
* add expert configuration property for number of undo steps
* OLE automation bridge: fix 64-bit pointer conversions
* fix build error for 64bit Windows in unit tests using ADODB
* sw: don't create AutoText dialog's preview doc ReadOnly
* writer: don't delete selection with delete-comment
* blacklist that specific vendor, version, and device combination
* avoid invalid access by reusing getFontFamily() result
* format argument issue in process.cxx
* partially revert "loplugin:constantparam in sw"
* force libxslt to give up when we cancel a transformation
* set unused shader attribs with values, fixes GL on AMD
* deterministic scheduling to prevent unpredictable behavior
* dbaccess self-dnd depends on getting its own transferable
* _nColId is sal_uInt16
* correctly treat fraction without integer part
* xmloff: only update the progressbar twice for every percent
* on Windows, compile GL shaders in advance, disable GL on failure
* fix division by zero in comboFragmentShader
* crash: switch to Display Mode: Notes via toolbar
* check earlier and harder whether OpenGL is good enough on Windows
* enable Keyboard Navigation in Template Manager and Start Center
* crash: switch to Display Mode - Master Modes - Notes
* crash on apply custom color
* crash on disposing media player