modified Query::adjusted_price for better readability, modified Query::time_first_adjacent_trade for concise. added the nested query syntax @WITH
added definition of sweep that removes all top-of-book liquidity, i.e. liq_sweep
nothing important after last commit, just backup the snapshot before I go back home Jul 23 2014
added bull / crash dates feature, analysis on futures (ESH4). But code dirty, needs to clean
Cleaned code. Unit tests includes: 1. tune sweep time window; 2. markup analysis for ESH4 in CME; 3.markup analysis for equities; 4. pmove analysis for equities; 5. (not completed) markup on ISLD bucketed by tickers with Low/Medium/High trading frequency