Make "select" as primary link

The main purpose of a DB management system (like phpMyadmin adn Adminer) is to view and edit data. We make the DB structure only once, then you select table more often.

The original Adminer designed in a way that when clicking on the table name, it will show "alter table". Which I really really hate because I don't alter table that often, I want to select it.

So I did 2 simple things in this commit:

1. On the left menu: Change the "select" link => "edit" link
2. Change all links of table names from **alter** table => **select** table

![image](https://cloud.githubusercontent.com/assets/7647566/4110461/804bec38-31f2-11e4-9dee-edee5218a601.png)

Hopefully the owner of this repo will merge it so that everyone else will benefit from this convenience. Thanks,

Binh