python-reimpl: load database functions
python-reimpl: parse_file(): call parse_file for each file
python-reimpl: class ParseFile() to replace 'to_parse'
parser: use new 'ParseFile'
parser: catch errors, print error message
python-reimpl: re-implement combine
python-reimpl: strip_comments: accept multiline comments
Parser: improve handling of parsing errors
Parser: handle imports
python-reimpl: re-implement link selectors
bugfix parsing > and < conditions
Parse and compile values with unit; improve compile_value()
python-reimpl: parse value: rgb()
python-reimpl: unset tags
python-reimpl: process mapnik: warn for possibly unresolvable properties
python-reimpl: conditions using an eval-statement as value
Restructure code into a Python package
Add setup.py
Remove obsolete code
Read version from pgmapcss/version.py