Merge pull request #5 from zfang6/master

Zhou
Merge pull request #6 from zfang6/master

remove semicolon in filename
Rename All-graphene computer chip.txt to All-graphene_computer_chip.txt
Rename Cryogenic on-chip quantum electron cooling leads towards computers that consume 10x less power.txt to Cryogenic_on-chip_quantum_electron_cooling_leads_towards_computers.txt
Rename Google begins developing its own.txt to Google_begins_developing_its_own.txt
Rename Magnetic materials.txt to Magnetic_materials.txt
Rename New ‘extreme’ computer chip.txt to New_extreme_computer_chip.txt
Rename Orbital computing.txt to Orbital_computing.txt
Rename Overclocking Nvidia’s GTX 970.txt to Overclocking_Nvidia'_GTX 970.txt
Rename Supercomputer stagnation.txt to Supercomputer_stagnation.txt
Rename first carbon nanotube computer.txt to first_carbon_nanotube_computer.txt
Rename future wearable computers.txt to future_wearable_computers.txt
Merge pull request #7 from xikanfeng2/master

change file name
Merge remote-tracking branch 'upstream/master'
Add 2 packages: dictionary and Statistics，for build dictionary purpose