encode jcr path in case of xpath query in repository servlet

if you now would like to query for example

/jcr:root/hst:hst/hst:configurations/7_8//element(*,hst:component)

then this doesn't work, because you have to encode the '7' : node names starting with a number need to be encoded. However, nobody knows this encoding

Easier to always do this through ISO9075.encodePath