locals for emacs virtualenv
update tank test
move globals to class variabesl
cover non-api functions
trim some fat
catch item cases for np squeeze
cover panel and panel4d in tests
wraps import missed
fix spcaing
remove unused exception code
using slicing
add case for non string or int sortlevel in xcorr
convert to the correct zero typee
cover series and scalar in detrend_mean
various small fixes
test all the different version of mult_mat_ and friends
EAFP vs LBYL
add no test coverage in test script