Merge pull request #1 from mcqueen1987/master

place the first line after start_session() to fix the header error messa...
add function for insert new pic of pet; add basic delete function
Merge remote-tracking branch 'origin/master'
set the table 'uid' as auto_increment field; use null when insert new child
import the piclist css and remove redundant css from style.css; formate the fill pet.php
add mysql_real_escape_string to escape special char;
enlarge font size of pet story to match the size of edit mod;
remove redundant blank in pet story field
finish delchild behavior:remove the div and remove the child from db after user click behavior
add 'set as front cover' for image;
remove 'delete' in view mode;
fix line feed issue in description page;
add avator in pet page;
add 'set as avator' function;
1.fix apache error
2.add directory operation when add/del child
Add basic mainpage resource
add related resource for mainpage
1.add table for headline
2.add code for query headline
3.add a basic display php function in carousel.php
1.update code of generating circle headline
2.remove mask layer on photo in pet.php when in view mode
1.add fulltext index in database;
2.add full text search php file;
add glyphicon for circle avator row
add navbar on top
add search bar in top nav
1.update navbar boostrap2 code to bootstrap3
2.improve search bar ui
1.add browse page
2.modify search.php,remove the logic of getting keywords from HTTP request. Now it's can be used internally.
3.add special logic for species search