DRT 0.4.1

Changelog

• Prevent tokens from having underscore _ or at sign @ characters for compatibility with the original DAAD interpreters, as at least some of them won't convert them into the last referenced object's description.
• Added the command-line argument --no-compatibility (with short version -c), for disabling compatibility with the original DAAD interpreters, such as the previously mentioned fix.
• Added the command-line argument --superset-limit (with short version -s), which allows for finding (at least slightly) better compression tokens. Ideal for authors who need to make the most out of the database size limits of 8 bit platforms. What they need to do is to try running DRT with different values for this parameter (integer numbers between 0 and 128), and keep the tokens of the one that gave the best compression.
• New translation into Portuguese language, which was contributed by @rogeriobiondi on #1

DRT 0.4

DRT now seems to be stable enough, and meets the minimum requirements of functionality, to consider it ready for public release. 0.4 will therefore be its first official release.