Ateemp to fix #212 by casing bearing and heading to double.
Merge pull request #2 from Nivekk/master

Merge from Nivekk
Add TERMVELOCITY which returns terminal velocity in m/s. Special thanks to insomnia.
If we are out of atmo return positive infinity.
Could not handle float in arithmetric operations

A feature allowing for terms of type STRUCTURE to return float directly
into the arithmetic interpreter. The iterpreter only supported numeric
values of type double.
Removed hardcoded resources list on SHIP: and get it from the game. Thanks to @palaslet for helping grok the syntax.
Merge pull request #213 from a1270/castingfixes

Cast heading subelements to allow for operations.. Fixes #212
Merge pull request #219 from a1270/dynamicshipresources

Removed hardcoded resources list on SHIP: and get it from the game. Than...
Merge pull request #215 from a1270/termvelocity

Add TERMVELOCITY which returns terminal velocity in m/s. Special thanks ...