* develop: (21 commits)
Use stable docs
Version bump to 2.11.2 (issues #500, #533, #732, #731, #737, #733, #438, #722, #52, #725)
Update project configuration template
Use stable docs
Implement firmware merging with base firmware for Nordic nRF51 development platform // Resolve#500 , Resolve#533
Fix firmware uploading to Atmel SAMD21-XPRO board using ARM mbed framework // Resolve#732
Add firmware merging process for nordicnrf51 // Issue #533, #500
Add OpenOCD as an alternative upload method for atmelsam platform // Issue #732
Sync flags parser with PlatformIO 3.0 branch // Resolve#738
Update ``udev`` rules for the new STM32F407DISCOVERY boards // Resolve#731
Add explanation about "Failed to find MSBuild toolsets directory"
Add support for local "--echo" for Serial Port Monitor // Resolve#733
Update history
Improve support for Microchip PIC32 development platform and ChipKIT boards // Resolve#438
Fix Project Generator for ESP8266 and ARM mbed based projects
Switch to gcc-built LwIP library for espressif platform
Push 2.11.2.dev2
Fix linking process for microchippic32 platfrom // Issue #438
Improve Project Generator for PlatformIO IDE (fixes incorrect linter errors)
* develop:
Update docs for Teensy USB Features // Issue #722
Implement Teensy 2.0 USB functionality (HID, SERIAL_HID, DISK, MIDI, etc.) // Resolve#722
Add support for Pinoccio Scout board // Resolve#52
Fix broken LD Script for Element14 chipKIT Pi board // Resolve#725Resolve#726
Fix USB flags processing for teensy platform // Issue #722
Add Pinoccio board // Issue #52
Minor improvements for CLion docs
Improved docs for integration with CLion IDE
Version bump to 2.11.1 (issues #472, #629, #710, #711, #712, #713, #718)
Typo fix
Add "udev" rules for OpenOCD CMSIS-DAP adapters // Resolve#718
Update history
Ignore "[platformio]" section from custom project configuration CI
Bump to 2.11.1b1
Add Arduino M0 Pro and Tian to the examples // Issue #472
Fix issue when `pioenvs` folder doesn't exist
Add more info about `.pioenvs` directory
Improve CMSIS selection for SAMD21 boards
Improve support for SAMD21 based boards
Add contributing guidelines
Ivan Kravets