Update nitrokey crate to 0.3.3

This change updates the nitrokey crate to version 0.3.3. Along with that
change we update rand to 0.6.4 because rand 0.6.1 does not yet contain a
publicly accessible rand_os. Note that we no longer require all
crates in rand's workspace, but only rand_os and rand_core, which is a
significant reduction in the number of lines of code compiled.

Import subrepo nitrokey/:nitrokey at 7cf747d56ddc0b7eeedc3caf36dcc909907a171c
Import subrepo rand/:rand at 4336232dda03323634b10ec72ddf27914aebc3a2

1 files changed, 9 insertions, 0 deletions

diff --git a/nitrokey/CHANGELOG.md b/nitrokey/CHANGELOG.md
index 72e6986..3845aaf 100644
--- a/nitrokey/CHANGELOG.md
+++ b/nitrokey/CHANGELOG.md
@@ -1,3 +1,12 @@
+# v0.3.3 (2019-01-16)
+- Add the `get_production_info` and `clear_new_sd_card_warning` methods to the
+  `Storage` struct.
+- Use `rand_os` instead of `rand` for random data creation.
+  - (Re-)add `CommandError::RngError` variant.
+- Account for the possibility that an empty string returned by libnitrokey can
+  not only indicate an error but also be a valid return value.
+- Make test cases more robust and avoid side effects on other test cases.
+
 # v0.3.2 (2019-01-12)
 - Make three additional error codes known: `CommandError::StringTooLong`,
   `CommandError::InvalidHexString` and `CommandError::TargetBufferTooSmall`.