Suppress compiler errors reported by an error-prone checker ([]) for tests.

I wrote an error-prone checker([]) to check that injected constructors are not annotated with @Inject(optional=true) or with binding annotations. This CL annotates the intentional tests for such cases with @SuppressWarnings.
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Created by MOE: http://code.google.com/p/moe-java
MOE_MIGRATED_REVID=64575706
Add BoundFieldModule to automatically bind @Bind annotated fields to their
values, reducing test boilerplate.
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Created by MOE: http://code.google.com/p/moe-java
MOE_MIGRATED_REVID=64668801
Fix external issue 372 -- only scrub the pathInfo if the servletPath actually
began it (not if it just happens to be longer than the servlet path).
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Created by MOE: http://code.google.com/p/moe-java
MOE_MIGRATED_REVID=64723867
Fix external issue 755.  Grapher config was wrong.
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Created by MOE: http://code.google.com/p/moe-java
MOE_MIGRATED_REVID=64724255
On second thought, according to the javadocs @ http://docs.oracle.com/javaee/5/api/javax/servlet/http/HttpServletRequest.html#getPathInfo() .. this is probably more correct, and still better than what it was before.
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Created by MOE: http://code.google.com/p/moe-java
MOE_MIGRATED_REVID=64726165