fix Put and PutFile
Update .classpath
Update org.eclipse.jdt.core.prefs
Update .gitignore
modifyed docs format
Merge branch 'feature/bugfix' of github.com:icattlecoder/java-sdk into feature/bugfix
Merge pull request #67 from icattlecoder/feature/bugfix

Feature/IOfix#2726
del unuse file
Merge pull request #69 from icattlecoder/feature/bugfix

del unuse file
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