Add block time limit to trade page
update address endpoint to use arrays as input, update filterOffers() data model and to take arrays of addresses
Move trade offers history to pending offers page, add hash explorer to explorer overview and history pages
Add js for explorer page, route to /overview in header
refactor hashExplorer service
refactor hashexplorer in walletcontroller
New front end sorting for Sell/Buy offers on Pending page
addresses #322
fix merge conflict
Merge pull request #309 from faizkhan00/milestone_improvements

Milestone improvements