CacheServiceTest: catch OOM Error

In the clearMem calls that create new arrays, out of memory errors are
now caught. During normal execution, this error is not expected (as
array creation should force garbage collection) but in some environments
GC may not happen in time (e.g., when releasing via maven).
Info command: add calibration

The Info command now prints calibration data for all axes.
ImageMetadata: removed git merge conflict text

Apparently there was an unresolved merge conflict that was allowed to
exist without raising compilation flags due to being in the comment
block of a method.

Fixed.
TIFFFormat: correct calibration data

Was mistakenly populating private fields in the Metadata instead of
putting calibration values on the actual CalibratedAxes.

Removed the superfluous fields and accessors. The TIFFFormat$Metadata
axes should now have their x/y/z calibration values populated correctly.
TIFFFormat: remove unnecessary "init" methods

There was still a method called "initMetadataStore" which was leftover
from Bio-Formats, as there is no "MetadataStore" class in SCIFIO.
Further, it performs operations that are not worth distinguishing from
"initStandardMetadata" now that calibration values are part of the core
SCIFIO Metadata model.

Thus, the "initStandardMetadata" and "initMetadataStore" methods were
removed and their code placed into "initMetadata" method of the
BaseTIFFParser class.