Just some improvements in the code, using lamba, logging and some other stuff#1

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ali4j wants to merge 6 commits intoluugiathuy:masterfrom

Commits on Jan 18, 2017

using lambda expressions in place of anonymous classes
ali4j
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Commits on Jan 20, 2017

replaces system.out.print() with java logging api and addes a new method (downloadResourcePartially) to use try-resource instead of try-catch-finally
ali4j
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Commits on Jan 21, 2017

updates README file, I've added my email address
ali4j
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Commits on Aug 18, 2017

Commits on Aug 19, 2017

adds a new column to the jtable to show the path of the downlaoded file, its tested in windows, I'm gonna test it in linux tomorrow., also the destination directory is changed to the user default d…

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ali4j-test
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