import schema build , return iIndex when add[Attribute|Field]
fix crash when fetch join MVA
add attributes, include mva
try fix mva & timestamp.
fix ctrl+c. refer: http://boost.2283326.n4.nabble.com/Does-Py-Initialize-change-CTRL-C-behaviour-td2700318.html
Merge commit 'refs/top-bases/t/pysource' into t/pysource
fix timestamp
fix mva
make source searchable, single table mode.
fix setup stage for mva..
join mva almost ok.
fix join mva
apply kill list