OPAL-1841 Download binary values individually
Code cleaning
OPAL-1853 export-xml python client command added
OPAL-1402 Use window.Location to reload the GWT App
OPAL-1859 Query option missings added and applied to continuous and categorical variables.
OPAL-1858 Assigning a table to a symbol makes a data.frame
OPAL-1860 rm session functions added
OPAL-1857 Variable filter added when assigning a table to a R symbol