Merge branch 'master' into wifi_mesh_update_2.2

Author: aerlon

.gitmodules

@@ -19,3 +19,6 @@
 [submodule "tools/esptool"]
 	path = tools/esptool
 	url = https://github.com/espressif/esptool.git
+[submodule "tools/sdk/uzlib"]
+	path = tools/sdk/uzlib
+	url = https://github.com/earlephilhower/uzlib.git

.travis.yml

@@ -24,11 +24,15 @@ jobs:
     - name: "Platformio (1)"
       stage: build
       script: $TRAVIS_BUILD_DIR/tests/platformio.sh
+      install:
+          - sudo apt-get install python3-pip python3-setuptools
       env:
         - BUILD_PARITY=even
     - name: "Platformio (2)"
       stage: build
       script: $TRAVIS_BUILD_DIR/tests/platformio.sh
+      install:
+          - sudo apt-get install python3-pip python3-setuptools
       env:
         - BUILD_PARITY=odd
 
@@ -76,6 +80,18 @@ jobs:
       env:
         - BUILD_PARITY=odd
 
+    - name: "Mac OSX can build sketches"
+      os: osx
+      stage: build
+      script: $TRAVIS_BUILD_DIR/tests/build.sh
+      env: MACOSX=1 BUILD_PARITY=custom mod=500 rem=1
+
+    - name: "Windows can build sketches"
+      os: windows
+      stage: build
+      script: $TRAVIS_BUILD_DIR/tests/build.sh
+      env: WINDOWS=1 BUILD_PARITY=custom mod=500 rem=1
+
     - name: "Host tests"
       stage: build
       script: $TRAVIS_BUILD_DIR/tests/ci/host_test.sh
@@ -98,18 +114,6 @@ jobs:
       stage: build
       script: $TRAVIS_BUILD_DIR/tests/buildm.sh
 
-    - name: "Mac OSX can build sketches"
-      os: osx
-      stage: build
-      script: $TRAVIS_BUILD_DIR/tests/build.sh
-      env: MACOSX=1 BUILD_PARITY=custom mod=500 rem=1
-
-    - name: "Windows can build sketches"
-      os: windows
-      stage: build
-      script: $TRAVIS_BUILD_DIR/tests/build.sh
-      env: WINDOWS=1 BUILD_PARITY=custom mod=500 rem=1
-
     - name: "Boards"
       stage: build
       script: $TRAVIS_BUILD_DIR/tests/ci/build_boards.sh

README.md

@@ -3,7 +3,7 @@ Arduino core for ESP8266 WiFi chip
 
 # Quick links
 
-- [Latest release documentation](https://arduino-esp8266.readthedocs.io/en/2.5.2/)
+- [Latest release documentation](https://arduino-esp8266.readthedocs.io/en/2.6.3/)
 - [Current "git version" documentation](https://arduino-esp8266.readthedocs.io/en/latest/)
 - [Install git version](https://arduino-esp8266.readthedocs.io/en/latest/installing.html#using-git-version) ([sources](doc/installing.rst#using-git-version))
 
@@ -36,7 +36,7 @@ Starting with 1.6.4, Arduino allows installation of third-party platform package
 #### Latest release [![Latest release](https://img.shields.io/github/release/esp8266/Arduino.svg)](https://github.com/esp8266/Arduino/releases/latest/)
 Boards manager link: `https://arduino.esp8266.com/stable/package_esp8266com_index.json`
 
-Documentation: [https://arduino-esp8266.readthedocs.io/en/2.5.2/](https://arduino-esp8266.readthedocs.io/en/2.5.2/)
+Documentation: [https://arduino-esp8266.readthedocs.io/en/2.6.3/](https://arduino-esp8266.readthedocs.io/en/2.6.3/)
 
 ### Using git version
 [![Linux build status](https://travis-ci.org/esp8266/Arduino.svg)](https://travis-ci.org/esp8266/Arduino)
@@ -106,7 +106,7 @@ Arduino IDE is developed and maintained by the Arduino team. The IDE is licensed
 
 ESP8266 core includes an xtensa gcc toolchain, which is also under GPL.
 
-Esptool written by Christian Klippel is licensed under GPLv2, currently maintained by Ivan Grokhotkov: https://github.com/igrr/esptool-ck.
+Esptool.py was initially created by Fredrik Ahlberg (@themadinventor, @kongo), and is currently maintained by Angus Gratton (@projectgus) under GPL 2.0 license.
 
 Espressif SDK included in this build is under Espressif MIT License.
 
@@ -123,3 +123,15 @@ ESP8266 core files are licensed under LGPL.
 [BearSSL](https://bearssl.org) library written by Thomas Pornin, built from https://github.com/earlephilhower/bearssl-esp8266, is used in this project.  It is distributed under the [MIT License](https://bearssl.org/#legal-details).
 
 [LittleFS](https://github.com/ARMmbed/littlefs) library written by ARM Limited and released under the [BSD 3-clause license](https://github.com/ARMmbed/littlefs/blob/master/LICENSE.md).
+
+[uzlib](https://github.com/pfalcon/uzlib) library written and (c) 2014-2018 Paul Sokolovsky, licensed under the ZLib license (https://www.zlib.net/zlib_license.html). uzlib is based on: tinf library by Joergen Ibsen (Deflate decompression); Deflate Static Huffman tree routines by Simon Tatham; LZ77 compressor by Paul Sokolovsky; with library integrated and maintained by Paul Sokolovsky.
+
+### Other useful links ###
+
+[Toolchain repo](https://github.com/earlephilhower/esp-quick-toolchain)
+
+[Lwip link layer repo](https://github.com/d-a-v/esp82xx-nonos-linklayer)
+
+[SoftwareSerial repo](https://github.com/plerup/espsoftwareserial)
+
+[Serial Monitor Arduino IDE plugin](https://github.com/mytrain/arduino-esp8266-serial-plugin) Original discussion [here](https://github.com/esp8266/Arduino/issues/1360), quick download [there](http://mytrain.fr/cms//images/mytrain/private/ESP8266SM.v3.zip).