FS#3906 remove timezone adjusting for GMT time

removed codes in formatDateTime that adds timezones to GMT time.
To use localdate function, there should be no need to adjust it
with timezones. UTC time is constant anywhere, the kernel will
adjust it accordingly
removing more GMTnow calls
FS#3906 use utc time in time stamp

replaced more GMTnow with now()
Merge branch 'fs-3906-use-utc-time-in-timestamp' of github.com:cention/ferite-module-webframework into fs-3906-use-utc-time-in-timestamp