Hyung-Hwan Chung

fixed source code for php74 compatibility

preferred inconsolata in some css files

changed to check the resturn value of svn_info() against NULL additionally

added the side-by-side .md or .wc preview in the code file view. need more touch-up

set tab-size to 2 in code_diff_old_code_block and code_diff_new_code_block to make tabs align properly inside span in google chrome. there should be a proper way. i'm ignorant about it

php7 compatibility into phpgraphlib.php

changed parameter spec in svn_diff to avoid segfault

fixed a wrong type in svn_blame in svn.c