db_tool: renamed $parser to $ini_file
db_tool: close #97; rename db_bootstrap to db_tool
WADTools release 0.004
idgames_db_dump.ini: set primary key, removed unused schema blocks

- Set PRIMARY KEY in 'files' table
- Removed 'levels', 'levels_to_files', and 'games' tables, will be moved to
  wad_index.ini
wad_index.ini: close #54: reworked WAD index database schema
db_tool: log warn what action the script is about to perform

- Previously, the script debug logged what action the script was going
  to perform
INIFile: log warn the block name and checksum when checksumming