Revert "change strict,relaxed to Strict,Relaxed"

This reverts commit d6fde3de2bd98ad9f391fad005e4392241344f0b.
add .deprecated function
add .deprecated{Function,Argument}
readd deprecated functions
mark isMassObject/isMassObjectList as deprecated
remove .match.arg and rename some method arguments
fix deprecated standardizeTotalIonCurrent
fix deprecated standardizeTotalIonCurrent
readd iplot-functions.R
replace method="Median" by method="median"
remove speed comparsion because it often fails on windows
prepare 1.8 release
remove iplot