ready to move to develop branch
prototype insert/find
Added dual way fixing destructor
Added dual way fixing destructor
Revert to previous commit
Added item node for iterator implementation
Updated list head
merging
Merge branch 'develop' of github.com:pierresaux/lithium into develop

Conflicts:
	hashmap.h
merging
Updated radix_node constructors
list_head is now a POD for use of container_of
Create iterator.h
Added best-effort support of container_of for windows
Reworked iterator, use external radix_node and list_head
Added list_head insert/delete operations
Extracted hlist_head for future use, bug fixes
More security measures
Removed hlist container, hlist_head operation security
Bug fix