updated message to more accurately reflect where SOAR_HOME should be
pointing
Typo fix: fiel -> field
csoar-sync: Better adherence to CSoar's int RHS function.

When handling strings, truncate at the first non-digit character after
an optional leading minus.
Support for adding XML to a specific InputWme using XmlToWmeTools.

Makes XmlToWmeTools' interface more like the InputWme interface: both
can accept a InputOutput or a InputWme from an agent.
Support for "cmd" RHS function.

Resolves issue 21: https://github.com/daveray/jsoar/issues/21
Removed dead code.
Replace the RHS "cmd" function when installing the TCL interpreter.
Have the canonical TCL test not be an otherwise plain Soar file.
Improved TCL "cmd" RHS function unit tests.
Fix newline "cmd" RHS function test for TCL.
Mark TCL-specific RHS functions as private.
Dangling println.
Javadoc formatting fix.
asIdentifier() -> getValue().asIdentifier()