allow to install LO-3.3 and LO-3.4 in parallel on Linux (fdo#36551)
allow to install LO-3.3 and LO-3.4 in parallel on Linux (fdo#36551)

* rename the branding packages from libreoffice3 to libreoffice3.4
* move the default root dir from /opt/libreoffice to /opt/libreoffice3.4

JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core