Semantic improvements

[kangarang]

i think it's worth changing some names to increase readability

majority bloc - group of voters who voted the majority rule

(plcr)
function isPassed -> majorityBlocVotedFor

• returns true if the applicant won a challenge

(tcr)
uint rewardPool -> majorityBlocRewardPct

• integer percentage value; used to calculate the amount of reward tokens transferred to msg.sender once claimReward is called

(plcr)
function getTotalNumberOfTokensForWinningOption -> getTotalMajorityBlocNumTokens

• returns either the votesFor or votesAgainst (whichever is greater)

(tcr)
uint totalTokens -> totalMajorityBlocNumTokens

• value returned from voting.getTotalNumberOfTokensForWinningOption -- either the votesFor or votesAgainst (whichever is greater)

winning voter - single voter who voted in the majority rule

(plcr)
function getNumPassingTokens -> getWinningVoterNumTokens

• returns the number of tokens a majority bloc voter voted in a poll