remove memcached adapter
add lockdata class
remove adapter interface
updated dependency to zend-cache
make reentrantlock dependent from storage (zend-cache)
reentrantlock is no abstract class any more
remove namespace from reentrantlock
fix getholdcount & isLocked method in Reentrantlock
renamed false named class
fix isheldbycurrentthread method
add contructor to lockdata class for simplified usage
update lock method in reentrantlock
implement unlock method