btce trade history argument id added
Merge branch 'develop' of https://github.com/timmolter/XChange.git into develop
add id argument to trade history getter
add trade id as argument for getTradeHistory
add id as last argument for trade history
Merge pull request #267 from artvel/develop

Little BTC-e Trade History improvement
xchange version update to 2.3.0
Issue #268 (https://github.com/timmolter/XChange/issues/268):
-if the JSON returned from the server contains an "error" entry, deserialize this value and return it to the user.
-since it appears the server will sometimes return a single string containing an error message and other times may return an object containing an array of messages, a custom serializer was required to boil that down into a single string
addedmissing constants issue #265
Merge pull request #269 from senecaso/develop

Issue #268 (https://github.com/timmolter/XChange/issues/268):
rename
formatting
fix
Exception cleanup
typo fix [ci skip]
Merge remote-tracking branch 'upstream/develop' into develop

Conflicts:
	xchange-core/src/main/java/com/xeiam/xchange/currency/CurrencyPair.java