* Fix undefined HRESULT codes in class CMapiApi in MapiApi.cpp.
* Fix doubled up sub-expressions in MIME and MAPI.
* Remove broken/unused morkRowCellCursor::MakeCell()
Tag #1273
* strip unnecessary ==== padding in base64 text.
* Extension of the characters to be encoded (quoted-printable) according to RFC2047.
* Remove unwanted characters from headers. Compact extraneous white space in display name to avoid sender address spoofing.
* Be more tolerant of spaces in base64-encoded RFC 2047 tokens.
Tag #1273
* Part 1: make conversion CTORs explicit.
Minor tweaks to conform with new(ish) static analysis rule which flags up implicit single-argument conversion constructors.
* Part 2: fix a couple of double-mRefCnt declaration errors.
* Part 3: Fix unsafe use of NS_ConvertASCIItoUTF16().
Tag #1273