dfs.c: delete the redunant space in the line end.
dfs_fs.c: optimized redundant loop.
Merge remote-tracking branch 'official/master' into auto-ci
add avr32 bsp building to travis-ci
Merge pull request #72 from rogerz/auto-ci

add avr32 bsp building to travis-ci
fix spelling error by ziyi897, this commit fixes #74.
fixed at91sam9260 context thread issue, avoid idle thread stack overflow
enable at91sam9260 mmu, update SDIO and EMAC drivers
fixed context thread issue when using armcc compile
clean up code
add At91SAM9260 SDIO highspeed and SDIO IRQ capability, fixed compiling warnning
Merge pull request #77 from weety/at91sam9260

Fixed At91sam9260 context switch issue, enable mmu, update SDIO and EMAC drivers
Merge pull request #75 from aozima/pulls

fix spelling error by ziyi897, this commit fixes #74.
strip more characters in finsh token
Merge pull request #78 from BernardXiong/master

strip more characters in finsh token.
Merge pull request #70 from geniusgogo/dfs-fixbug

Dfs clean and optimized code