Remove unused variable in ConfigurationAction

The variable "threshold" was declared and set but unused. This change deletes
the unused variable.

LBANDROID-2
Make ASaxEventRecorder.StatePassFilter a static class

The inner class was not static, which makes instances of the class larger
and may keep the reference to the creator object alive longer than necessary.
The inner class has been changed to static.

LBANDROID-3
Change XMLLayout instance final fields to static

The instance final fields in XMLLayout are now static.

LBANDROID-4
Make LoggerComparator implement Serializable

LBANDROID-5
Delete unused fields from PackagingDataCalculator

The unused variables and methods in PackagingDataCalculator are now deleted.

LBANDROID-6
Remove unwritten fields in EchoEncoder

This change deletes the fileHeader and fileFooter fields from EchoEncoder.
They were not written, so the code that null-checks them has also been
deleted.

LBANDROID-7
Comment out unused variable in EventObjectInputStream

The endPointer variable was set but unused. It's now commented out.

LBANDROID-8
Check return value of stream.read()

This resolves a warning where the return value of stream.read() is ignored,
which ultimately has no negative effect because the contents of the read data
is validated by checking for a specific value, but it could potentially fail
if the value is changed later to something that could be valid after a "bad"
read().

This change throws an exception if the return value is an error.

LBANDROID-9
Use Boolean.valueOf() in ConfigurationWatchListUtil

LBANDROID-11