Refactoring alignment
Merge branch 'master' into feature/gfm_column_alignment

Conflicts:
	autoload/tablemode/table.vim
Added support for column alignment #23

Now we can define gfm-style aligment by adding them to the header column
Fixed #19

Updated tablemode#table#IsRow() to allow hiphens within the row.
Merge branch 'feature/gfm_column_alignment'
Releasing v4.3.0