Suggest ALL-UPPER-CASE candidates for ALL-UPPER-CASE target word

[KSR-Yasuda]

Tweak for #67.

[KSR-Yasuda]

Also fixed all word replace (ZL, ZC) failed after UPPERCASELetters.

Example

Replace Spll -> Spell:

Original (Wrong) Word	All-Replace w/ Bug	All-Replace w/ Bug Fix	Remarks
SPLSpll	(no change)	SPLSpell	It had expected no CAPITAL letters come before the word.
SplSpll	SplSpell	SplSpell
splSpll	splSpell	splSpell
splspll	(no change)	(no change)	Not word beginning.

Replace spll -> spell

Original (Wrong) Word	All-Replace w/ Bug	All-Replace w/ Bug Fix	Remarks
spll	spell	spell
spllSPL	spellSPL	sepllSPL
Spellspll	Spellspell	(no change)	Not word beginning. Original ver. had replaced wrongly.
splspll	splspell	(no change)	Not word beginning. Original ver. had replaced wrongly.
SPLspll	(no change)	(no change)	Not word beginning.