Merge pull request #16 from linquize/no-return-value

Change function return type to void to fix warning
Merge pull request #15 from linquize/error-header-copyright

Add copyright header in cangjieerrors.h
Add Visual Studio ignore list
Add libcangjie2 Visual Studio project skeleton
Add sqlite3
libcangjie2 add reference sqlite3
Add the files to libcangjie2 project
Add libcangjie2_dbbuilder
Add libcangjie2_cli
Add libcangjie2_bench
Add test_cangjie
Add test_cangjiechar
Add test_cangjiecharlist
Merge remote-tracking branch 'remotes/linquize/extern-c-dllexport' into msvc-proj
Add cangjiecommon.h into libcangjie2.vcxproj