clean leftover debug info

fix handling of aliases/system calls for multiline input

update release file

fix small but critical bug for win32 system access.

Final commit for 0.7.0.rc1

- Fix autoindent which I had broken... - Remove (they weren't actually used by anything) useless inputcache update calls. - New ipsystem builtin(), similar to ipmagic and ipalias. - Other cleanups.

accidentally broke autoindent, fixed.

Ensure that, with autocall off, attribute access will never be performed twice (which can cause side effects).

- thread-safety fixes - moved macros to their own module (stabilize the API for %store) - fix handling of empty lines in multiline input which comes via runlines() and not interactively (such as macros or over the network protocol in the chainsaw branch) - improvements to %whos for instance variables

doc fixes to logging