BUG: Values were sent as strings instead of floats
BUG: Values were sent as strings instead of floats

The PoolingProcess class expects some values to be floats, however the
`val` function in JavaScript always returns strings (regardless of the
input type).

Fixes #181

jdereus/labman,jdereus/labman,jdereus/labman,josenavas/labman,josenavas/labman,josenavas/labman