cleanup the anim FPS code
PCMK: disable service submenus in groups with --slow option

it costed too much performance and it is still rechable in the
tree menu
fix npe with tooltips

set tooltips to "" instead of null

it might fix:

java.lang.NullPointerException
null
javax.swing.ToolTipManager.initiateToolTip(ToolTipManager.java:477)
javax.swing.ToolTipManager.mouseEntered(ToolTipManager.java:434)
java.awt.AWTEventMulticaster.mouseEntered(AWTEventMulticaster.java:283)
java.awt.AWTEventMulticaster.mouseEntered(AWTEventMulticaster.java:282)
java.awt.AWTEventMulticaster.mouseEntered(AWTEventMulticaster.java:282)
java.awt.Component.processMouseEvent(Component.java:6299)
DRBD: make broken DRBD config visible in the GUI
remove dead code
DRBD: fix testing of the drbd config before applying

lost during 4dbce5be58d127fd2ab9bd8ea3f2ebefc32c5992
DRBD: ignore some drbd config (no)errors.
Merge branch 'slow'
Merge branch 'tooltips'
Merge branch 'drbd-errors'