Remove warning about redefined strtok_r
Fix a typo in a recent commit
Refresh configuration
Allow building simulated framebuffer dirver is NX is not enabled
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Merge branch 'master' of http://git.code.sf.net/p/nuttx/git
Traveler: Change the way that the world path is managed.
Traveler: Add build configuration for the simulated target
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Cosmetic change to debug output
Set the GPIO_SPEED_50MHz on all F2 and F4 SPI pin configurations.  This is based on an F411 SPI1 errata but the fixed is generalized to all SPI and all F2 and F4 (let me know if this introduces any other issues).  Discovered and fixed by Sebastien Lorquet after much consternation.
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Merge branch 'master' of http://git.code.sf.net/p/nuttx/git
WIP