Update vdbe.c

添加了OP_LoadAnalysis操作码的注释。
Update vdbe.c

第一次使用github
Update vdbe.c

更新了checkSavepointCount(sqlite3 *db)函数以上代码的中文注释
Merge pull request #4 from LiYuquan/LiYuquan(VDBE)

Update vdbe.c
Merge pull request #3 from HOAN-NING/HOAN-NING(VDBE)

Update vdbe.c
Merge pull request #2 from Jessiechang/ZhangMengjie(VDBE)

Update vdbe.c
Merge pull request #1 from HuiLi/master

合并老师的更新