[Docs] Add RT-Thread logo.
[Finsh] fix device_open issue when set_device in finsh.
[bsp] Fix STM32F10x compiling warning.
[Kernel] The rt_object_find routine can support to find an object inside a module. The usage is: rt_object_find("module_name/object_name").
[Kernel] Better documentation for doxygen.
[bsp] Add MB9BF618 porting.
[bsp] Add MB9BF618 porting.
[bsp] Fix MB9BF618S building issue.
Merge pull request #304 from ArdaFu/master

[bsp] Add BSP for TM4C1294XL (TI Tiva C Series Connected LaunchPad)
[bsp] Fix MB9BF618s scons building issue
[bsp] Add tm4c129x bsp building in travis-ci
Merge pull request #307 from ArdaFu/master

[BSP] tm4c129x Add EMAC/PHY driver
[pthreads] Fix pthread_cond_init issue. #261
[libc] fix compiling warning
[external] PNG_NO_WRITE_SUPPORTED issue

Move PNG_NO_WRITE_SUPPORTED outside of RT_USING_NEWLIB. #197
Fix some spell error;
add more SPI device driver.
Merge pull request #308 from aozima/pulls

[DeviceDrivers] Add more SPI drivers.
[DFS] make comments cleanup.
Merge branch 'master' of https://github.com/RT-Thread/rt-thread