categories 'all' not consistent

[salvafern]

Raised by Steven Pint

Comments LW package:
getStationData() -> categories = "All" ==> doesn't work (in info example it is like this)
getStationData() -> categories = "all" ==> works but no pigments data

Also selecting station 'W09' provides station 'W09' and 'w09' -> I assume it is the same station but can be confusing. Although, it's easily solved in R so no big issue, just mentioning it.

[salvafern]

bb37a49 is a temporal fix to have correct documentation. But doesn't correct the fact that the package does not normalize the capital letters. For instance: CPOD data requires "All" instead of "all". There is simply not consistency. To fix this properly we have to go down to the server level and make sure the outputs are consistent.