mapistore/oxio: Fix Indexing.uri_by_id SQL - fmid is actually a string
mapistore/oxio: Return more attributes for Folders in GetRow and GetProperties
mapistore/oxio: Search for Folder.parentFID - create entry if it doesn't exists
mapistore/python: Change a bit clumsy check for PyBool value
mapistore/python: Check both for String and Unicode types when converting PyString

This one took me a huge ammount of time to track down :(

Strings returned from python modules are Unicode.
Hence this check fails and we fail to return PidTagDisplayName at all.
The effect in Outlook though is that main folder just
shows that there are no child folders.
HACK: mapistore/python: preload libpython2.7 with RTLD_GLOBAL

This is for sesequent modules loading to work
HACK: Skip provisioning every time mailbox is opened
HACK: Makefile: don't install python backends - i'm using symbolic link
WIP: mapipstore_backend: Gather as much context as we can - don't fail if backend fail

oxio for instance doesn't support this call yet
HACK: oxio.py: Prefix folder names with 'OXIO-' so it is visble when it come from