Version 0.4.51
bumped version to 0.4.51
fixed memory leak at failed AssignmentOperatorDeserializer
fixed memory leak if a file couldn't get opened
fixed hardy compiler bug bug
attempt to render stdlib causes no more segfault
adaptions for gawk 4.0.1
maybe sidux can point out where the error is why it doesn't compile on hardy
exception save memory management for compiler completed (RAII idiom)
debugging
