Add two buttons to navigate to the head and the tail.
Added icon for IBM OS/2
Merge branch 'master' of git://github.com/yunfzhan/sqlitebrowser into yunfzhan-master
Merge branch 'yunfzhan-master'
browsetab: change go to begin/end button text so its more obvious begin and end is meant
Merge pull request #168 from justinclift/os2v2

Added icon for IBM OS/2
Merge branch 'master' of https://github.com/sqlitebrowser/sqlitebrowser