Merge pull request #160 from hmert/master

merge
Page entity added
Merge branch 'master' of github.com:okulbilisim/ojs
Merge pull request #161 from hasantayyar/master

Page model
article submission step2 ui
translation improvements
Merge pull request #164 from hmert/master

merge
Merge branch 'master' of github.com:okulbilisim/ojs
Merge pull request #166 from hasantayyar/master

article submission step2 ui
Merge pull request #5 from okulbilisim/master

merge