WebIf:
1) Re- enable pagerefresh on cacheex page
2) Fix sorting of LTIME column on User page
3) Enable/Disable User/Reader on User-/Readerpage without pagerefresh (keeps sorting)
4) Reset stats for an user without pagerefresh (keeps sorting)
5) Delete User/Reader on User-/Readerpage without pagerefresh (keeps sorting)

git-svn-id: http://streamboard.de.vu/svn/oscam/trunk@9666 4b0bc96b-bc66-0410-9d44-ebda105a78c1