ImageCacher: stop expand buffer in loading from file cache
ImageCacher: make fetch routine another method
SPLP: Reduce StatusPanel#compareTo invocation (500k->20k)

Use Improved(?) binarySearch
SPLP: Bucket support (issue #23)
SPLP: limit #add time
SPLP: make vars
SPLP: avoid double screen flushing
SPLP: don't skip #add if bucket is not empty
Merge branch 'turenar/splp'

I stop developing for a while. I'll be back after March...