PUBLISHED_FROM=b5b12cdf4273f21dbcdac9bfb6a06063152914c9

PUBLISHED_FROM=1bdacf793b35ebe70d0a3a9d64260dd2bd135c73

PUBLISHED_FROM=35e8f18aa611b45c271d0178d9197291bfa9726d

`mg_mqtt_match_topic_expression()` and friends are public now.

So far, only `#` is supported.

PUBLISHED_FROM=20c031bcf34be84771c4a9c456318634eb9a517c

PUBLISHED_FROM=ca5332e63700274ed9aeea9d9d1802e89fa788fa

For both OpenSSL and mbedTLS

PUBLISHED_FROM=0bfd5f128b4c4c062cb6f0ca0da9b30790aa8bf8

PUBLISHED_FROM=f0fe58c9f01ef0c7b491ed0e5f51b983e4119507

PUBLISHED_FROM=478792d0479ba2154f0a65eea066f6ae6f235f84

PUBLISHED_FROM=7864ffa26cb553f5d4a93248f67c288327ec23b0

PUBLISHED_FROM=6724de19c28f972a785b0d5e7dd4b41889e04850

Fixed a bunch of things to make OTA work on ESP32 with flash encryption:
writes to app aprtitions must be 32-byte aligned and mod 32 in size.
When merging filesystems during update, use spiffs_vfs_* functions so
that old fs is properly decrypted.

Refactored cs_dirent stuff: SPIFFS support moved to spiffs_vfs.c,
added dirent.h on ESP8266 and CC3200 which includes cs_dirent.h
Define DIR and dirent only if asked (ESP8266, CC3200, WIN32).

PUBLISHED_FROM=58b0d05cdc41b1a9e02d341e2a1cdcb012829232

PUBLISHED_FROM=b22a136bc630b7cf4a62fd9d91b85e0e939a7f82

PUBLISHED_FROM=e18f33e14f4c0e1cb004aa264dd64ca5a0056190

cesanta/esp-idf is rebased onto espressif/esp-idf#aece3d6fc62fd91d3c5a87e0ab2ddb5ac51d8ff0

A few wifi changes and VFS support for directory-related functions.

PUBLISHED_FROM=7823db802945122aa1b5453da8abd8e380cbf2fa

PUBLISHED_FROM=1f767c1383c1dcd366e667681aebd41c30a102f3

PUBLISHED_FROM=da389ddabf96918fd1bc022e0696dbb4542c71c1

PUBLISHED_FROM=fe7230811b7f12286c5ac6de1ef8fb068cd61145

Optional specification of SSL/TLS cipher suites.

PUBLISHED_FROM=e8968c6c7a92f10514d3ee575c2fb9be862e6cf8

PUBLISHED_FROM=13fe18cb6c92e5dd6d9e319c35e256e2b206a110

PUBLISHED_FROM=de4b9f3e9eeafa75bb8919abacd86fb23fdefc1b

PUBLISHED_FROM=20c87885c8f778139d3df20507d6870070bcc787

PUBLISHED_FROM=7c81ec28457cda3a503e4ab01fc8593e474df4b8

PUBLISHED_FROM=42997efb3ddc462c33d2cf7e8ef0e922797d9901

Factor out common part of SPIFFS libc interface support from the CC3200
port and reuse it for ESP32. Minor cleanups.

PUBLISHED_FROM=19ad4049372f83046abd8eba29cfc7c2cc405671

This PR does not include `fw/platforms/pic32` since it's too dirty.

PUBLISHED_FROM=db50ba389202da80355aafe5f2c1ceeca7bffe41

Fix errors so it builds.

PUBLISHED_FROM=db9fc9ef997d6b1847117e8db9aefdc7e540f4cc

PUBLISHED_FROM=00ca7b2adabde94a683ac4d33be1f2bdbb17772f

Namely, define it if only `MG_ENABLE_HTTP_STREAMING_MULTIPART` and
`MG_ENABLE_FILESYSTEM` are on

PUBLISHED_FROM=3094738a4b76ceb09a3c2374e8d9d914b71c3441

PUBLISHED_FROM=2f6fb7ea5abdcd4ca9b06956172938ee3bc28459

And use it for `FW_ARCHITECTURE`. This is needed because with
Microchip's xc32, `-DFOO=\"bar\"` results in `FOO` being `bar`, not
`"bar"`, so we have to stringify differently.

PUBLISHED_FROM=d0aeebb55ef9e0e92a7f750104cd6600e0d9c636

PUBLISHED_FROM=bd87b901b7c1c1a4f9b0f875f0b024b672121d4a

PUBLISHED_FROM=6abc158f198f5bd032e5ab06cc0ba3373434cdbe

On PIC32MZ, this is required to get `ntohl` and friends.

PUBLISHED_FROM=82ab532cd3757df6f79215f3eaca90cd87f6c965

PUBLISHED_FROM=5b63325ade34b9032476fc88ac407816990f1cfc

PUBLISHED_FROM=e6fb19c5256b6d43359f21b325e16b415152f26f

PUBLISHED_FROM=26becdaf7dd61481b88b166ea87d44a7bc796660

Also performs trnasparent SPIFFS -> SLFS cert copy.

If the file's extension is .pem, convert it to DER format and put on SLFS.

PUBLISHED_FROM=364caab21969ca28a05802c4dde93a11d1e0feda

Also fixed a memory leak on reconnect: previously, each reconnect was
creating a `struct mg_connection` which was never reclaimed

PUBLISHED_FROM=eefdcf557e032ac81d5ed3aba55ac912e400148e

PUBLISHED_FROM=b17ef5bc8ec801fca91c89af5f97767a55911952

PUBLISHED_FROM=ac54bcbc81a9ee688e8b90e261172be76a9fbacd