Two files in burlap have unmappable characters

[brawner]

I ran into problems building from these two files. Pull request to follow shortly

[javac] /home/brawner/workspace/burlap/build.xml:23: warning: 'includeantruntime' was not set, defaulting to build.sysclasspath=last; set to false for repeatable builds
    [javac] Compiling 45 source files to /home/brawner/workspace/burlap/build
    [javac] /home/brawner/workspace/burlap/src/burlap/behavior/singleagent/planning/deterministic/informed/astar/DynamicWeightedAStar.java:34: error: unmappable character for encoding UTF8
    [javac]  * Proceedings of the Third International Joint Conference on Artificial Intelligence (IJCAI-73) 3. California, USA. pp. 11�17.
    [javac]                                                                                                                            ^
    [javac] /home/brawner/workspace/burlap/src/burlap/behavior/singleagent/planning/deterministic/informed/astar/StaticWeightedAStar.java:17: error: unmappable character for encoding UTF8
    [javac]  * 1. Pohl, Ira (1970). "First results on the effect of error in heuristic search". Machine Intelligence 5: 219�236.
    [javac]      

[brawner]

Welp, I screwed this workflow up. I made changes on master. I can revert the commit if this screws things up for others.

[jmacglashan]

I think everything is fine on my end and since most of the other changes being made are coming from me right now, I think we're okay