Pyastra Code

*_op stages have been removed.
Old pyastra_c front-end name has been removed.
Automatic Pyastra revision update.
Pic16 porting process has been started.

Stage 'tree_op2asm' has been splitted into two stages: 'tree_op2ol' (tree to object list) and 'ol2asm' (object list to assembler).

Some refactorng has been made.

API documentation in epydoc format has been added.
Some refactoring was made:
- Pyastralib has been moved to module pyastra.
- Filters were renamed to convertors.
- Processor definitions have got a "pic" prefix.
- ...
Improvements in front-end.
New processors were added to pic14 port.
Some of dead code has been removed.

Added NEWS file.

Major:
~~~~~~
New architecture
Full "Import" node support (don't confuse with "From" node!)
"Getattr" node support
"Halt" and "Sleep" lowlevel functions have been moved to lowlevel.py module

Minor:
~~~~~~
Option "--op-speed" has been removed
Filter-specific options have been added, "--icd" moved to tree_op2asm
Errors are written to stderr, not stdout
Added "--debug" option (for Pyastra debugging)
Added output of the current version at every start to ease maintenance.

Major:
~~~~~~
New architecture
Full "Import" node support (don't confuse with "From" node!)
"Getattr" node support
"Halt" and "Sleep" lowlevel functions have been moved to lowlevel.py module

Minor:
~~~~~~
Option "--op-speed" has been removed
Filter-specific options have been added, "--icd" moved to tree_op2asm
Errors are written to stderr, not stdout
Added "--debug" option (for Pyastra debugging)
Added output of the current version at every start to ease maintenance.

Bugfix: add32 didn't handle carry bits properly

Bugfix: a << i didn't work properly.

This commit was manufactured by cvs2svn to create tag
'release-0_0_4'.