Fixes the implicit declaration of function 'llabs' warning when using older gcc versions
(cherry picked from commit 9c325854495a47b2ee8a41c6486b5e985df795a9)
htsp: fix bug causing imagecache file open to crash.
(cherry picked from commit 82a1edd132d5531823e3673fbb9c08105780e59c)
htsp: bump version number due to imagecache fix
(cherry picked from commit c80088ac2396a453a8d8fcd84db259821d14e467)