PLAT-5903 Convention export as zip file.

Allows all conventions to exported in a zip file format, tildes and slashes (forward and back) are replaced with ALL CAPS descriptions of those characters.
Reviewed-By:Chris Kent
PLAT-5903 A few updates that seemed to have been missed last time
PLAT-5897 - Ensure convention type works with Joda-Convert
PLAT-5903 backslash needs escaping twice.
Added license header.
[PLAT-5894] Add missing headers for jquery and ace xml editor
[PLAT-5894] Use ace xml editor for viewing legal entity versions
[PLAT-5884] Old method removed
[PLAT-4579] Adaptive mesh method
[PLAT-5904] [PLAT-5905] Changed CurveMarketDataFunction to get data for bills.
[PLAT-5907] Adding basic rounding using number of days
Reviewed-by: julianhowarth
fixing new portfolio dialog in WebUI
[PLAT-4609] Support Oracle in com.opengamma.component.tool.DbCreateTool