reuse already build perl libs

untill we run "make clean"

Signed-off-by: Sven Nierlein <sven@nierlein.de>
replace livestatus version too

this should keep both versions syncronized

Signed-off-by: Sven Nierlein <sven@nierlein.de>
let travis set the version number before build

Signed-off-by: Sven Nierlein <sven@nierlein.de>