Log Message:
Updated libfilezilla to 0.9.0.

2016-11-28 - libfilezilla 0.9.0 released

New features:

    Added parameter to fz::to_integral to specify which value is
    returned on error.
    Added fz::remove_file
    Added fz::hex_encode and fz::hex_decode

2016-10-25 - libfilezilla 0.8.0 released

New features:

    Added fz::str_toupper_ascii to complement fz::str_tolower_ascii
    Added fz::trim and fz::trimmed for removing leading and trailing
    whitespace from string
    Added fz::str_is_ascii

Bugfixes and minor changes:

    Fixed zero-padding for x and X string format conversion specifiers

2016-10-03 - libfilezilla 0.7.1 released

Bugfixes and minor changes:

    OS X: Work around a nasty bug in XCode where programs explicitly
    compiled for older versions of OS X were silently pulling in
    features exclusive to the new version, resulting in crashes at
    runtime
    MSW: Fix detection of thread creation failures