BugID:19084924:fixed travis build problem

BugID:18793720:[footprint], Log optimization on default settings

Change-Id: I74bc47ac2940ab5f85284a620432fcc63d2c909a

fix for atparser.c, mk3060.c, bk7231.c (alibaba#800)

[makelib] update prebuild libraries

Merge pull request alibaba#464 from raulcxw/master

update for RTL8710BN

Merge pull request alibaba#427 from alibaba/update_1.3.2

Update 1.3.2

Merge pull request alibaba#426 from alibaba/update_1.3.1

Update 1.3.1

fix rda5981 ota service not init problem & make errors

Merge branch 'tinyengine_i2c' into 'master'


fix bug of i2c addon

fix bug of i2c addon

See merge request !3562

delete unused print & fix iar compile problem & adjust guiapp sensor …

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