Update yahoo.finance.balancesheet.xml
Update yahoo.finance.cashflow.xml
Update yahoo.finance.incomestatement.xml
Add analystestimate.xml for yahoo.finance.
finance.historicaldata fix to return symbol 

Instead of returning the date twice in the response struct, replace first date element with symbol. This adds support for YQL "symbol IN (a,b,c)" functionality.
Merge pull request #403 from canada4663/master

Fix reporttype bug
Merge pull request #404 from randomizedthinking/master

Add analystestimate.xml for yahoo.finance.
Merge pull request #405 from mfisher87/master

fix finance.historicaldata to return symbol