Lazy loading of command completions

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@35477 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
#4469 - AngleBisector[line,line] cas command added.

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@35478 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
* Back again to NON static pivot variable
* use pivot to compute inverse matrix

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@35479 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
Fix for stylebar lazy loading

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@35480 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e