Removed the logger from Cmplx.java since it was unused
Removed commented out calls to runtime and removed unused runtime object
in scanner.java
Switched the error message regarding NaN or Inifinite values to be an
error like the message shows instead of a warning.
Added javadoc comments to MetricInjector.java
Removed selectAll from MetricDatabase.java. It was originally meant for
a Java backend for the website, which never came to fruition.
Reformatted two comments. Added information about getmetricdigest. Added
a TODO for checking if the command in Tasks should be an enum instead of
a string. Currently it is just being string compared in large if-else chains.
Removed unused GET-METRIC-DIGEST functions and calls.
Removed unused getMetricDigest (we use getmetricvaluedigest) and added
javadoc comments.