- for huge tx: shrink input/output index numbers and don't include thousands separator
- move JSON displays into cards for UI consistency
- tons of frontend code consistency cleanup
- updated bootstrap with thinner column gutters (to avoid the col-lg-left/col-lg-right business I was hacking)
- remove npm links from demo homepage banner
- new /block-analysis tool for summarizing data for all tx within a given block
- include subsidy and tx fees in volume displays (on homepage network summary and on block details pages)
- misc minor styling and frontend ux tweaks
* display chain/network in header if not mainnet
* indicate active chain/network in startup log
* specify which chain/network "fun" items apply to and only show them for that chain
* don't display exchange rates for testnet/regtest
* use block interval of 150 for regtest halving
* regtest hacks: since getblockchaininfo.blocks=0 on a default regtest node despite the genesis block existing, hack in a couple of places in order to display the genesis block
* fix /peers page to not throw error with no connections
- table responsiveness improvements
- add some shadows for visual depth
- hide radial progress bars on small screens since they're not working properly
- text-wrapping improvement for addresses in tx io details