adds styles for current-week
adds logic for str_isCurrentWeekClass
fixes injected classes for body

pnpC is injected by default,
additional classes are appended
adds conditional method for str_isCurrentWeekClass

conditional style
refactors meaningful classes

div.pnpC-container is only used for bootstrap grid
refactors to meaningful style classes

table#pnpC-weeks-table is a great class name to identify such unique
table
adds style definition for current-day
adds to_s to proper comparison

date is a string, from json response
adds pnpC prefix for behavioural syle class
adds id to unique table
adds behavioural style class for current day
adds some documentation