Merge pull request #3 from east301/master

Add "hide column" feature
unified toolbar for Qt 5
move build scripts
change icon size to 32x32
unified toolbar for prefrence
Merge branch 'master' of github.com:informationsea/TableView
support full text search for SQLITE
Add new shortcuts
update gitignore for windows
fix R import code for Windows
update git ignore for windows installer
add Windows installer for Qt5
fix git ignore
add table duplicate
add plotter
fix old macro
add "create index" menu to context menu of table header
Close and delete all related dialogs when main window closed
Fix crash on quit
add "export to R" to custom sql dialog and fix sqltextedit