Tab works properly in org-mode

Moves to next cell when in a table, completes or indents otherwise.
Enter works as it should in org-mode

In tables it would insert a newline rather than moving to the next row.
Tab uses smart indentation

Rather than just inserting a certain number of spaces, tab indents the
current line to the correct level.
Default to insert-state in calc-mode
Include lib files that ship with evil

goto-chg and undo-tree are currently the only lib files relevant to normal use.