Bug fixes for version 6_0_01
1) Bug in one of the performance optimizations.
Updates for version 6_0_01
1) Allow negative indexes by default
2) Allow indexes to be X or Z and replace the access with X as for
out-of-bound accesses.
6.0.01
6.0.00
5.0.24
5.0.23
5.0.22
5.0.21
5.0.20
5.0.19
5.0.18
5.0.17
5.0.16
5.0.15
5.0.14
5.0.13
5.0.12
5.0.11
5.0.10
5.0.09
5.0.08
5.0.07
5.0.06
5.0.05
5.0.04
5.0.03
5.0.02