create gameagg.h skeleton
GameAGGRep
importing libagg
bug fixes to make them compile
test program for agg
Rewrite mixed strategy profile computation with AGGs to work around gcc 4.2 bug.
Integrate AGG into main build framework.

Integrates libagg and the wrapper thereof into the main build
framework.

AGG test driver program in src/libagg/getpayoffs.cc is now built
as gambit-testagg.  In the longer run, it would be preferable to
move this (and other testing code) into a new src/tests directory.
build commands
remove old Makefile
getpayoff.cc: test for program name: now look for "gambit"
PayoffDeriv; some cleanup
libagg namespace cleanup
further libagg namespace cleanup
Read AGGs using Gambit::ReadGame

Files with initial token #AGG are recognized as AGGs.
Also added several example AGGs to contrib/games
GetPayoffDeriv for AGG

GetPayoffDeriv now fully implemented; gambit-liap now should work.
Fix StrategySupport::NewMixedStrategyProfile to correctly deal with AGG

StrategySupport::NewMixedStrategyProfile now correctly outputs the AGG
version when appropriate. This required adding new functions
GameRep::NewMixedStrategyProfile that takes the StrategySupport as
input.

With this fix, gambit-logit now works.
Fix wrong line order in gambit-liap help message
Rename Number typedef in libagg to AggNumber

The typedef of double to Number in libagg conflicts with the Number
class in libgambit.  This renames the typedef to avoid the clash.
Link libagg into Python extension.

Add the files in libagg to the list of files for building the Python
extension.  This means that AGG files can now be read into a game
object.  Methods on the AGG representation are as yet untested.
Clean up compiler warnings in AGG implementation.

This tidies a few compiler warnings related to libagg:
* Do initialization of static member out-of-line in trie_map
* Reference std namespace more properly
* Throw exception on invalid strategy index in GetStrategy on
  an AGG representation game.