Fix bug 872178 - UTF-8 encoding lost during ics roundtrip resulting in calendar read error (CAL_UTF8_DECODING_FAILED). r=mmecca

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extra : rebase_source : 6a5c7978b9613dd287ee9aa293eaf1657910280e
Fix bug 872173 - Timezone information lost when reading ics file, all times converted to floating. r=mmecca

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extra : rebase_source : 2b6f6486ba4ceeab2083e8263a1322dd2e1bb39e
Fix bug 872186 - Only first entry is read from single file with multiple VCALENDAR entries. r=mmecca

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extra : rebase_source : 7618e93f967f6a50872d008079daa62fb2fcb451