temporary checkin: meta data in one record for each document
workon metadata --in progress
cleanup of some misused shared pointers
added data and posinfo block tests and fixed some memory problems reported by valgrind
reimplement forwar index -- in progress
finish rewriting of new metadata and forward index -- need to test
...
bring up tests again
fix warnings
..
temporary checkin
finished reorganization of storage transactions
bugfixing new blocks
do delete old document only when it exists
working on a memory efficient key map
implemented variable size keymap
testing var size node tree -- in progress
work on variable size node tree in progress
...
finished and tested variable size node tree