smd_bio v0.5.0

For Textpattern 4.7.x+.

• Use Txp 4.7.0-style language identifiers.
• Add class txp-form-field to wrapping divs for all bio fields in admin (thanks, johnstephens).
• Fix classnames and scope (thanks, philwareham and phiw13).
• Fix SQL errors when creating columns.
• Fix MySQL restrictions on DEFAULT column types.
• Alter default column types for most columns. Text-based columns are way too big and result in performance issues as they cannot be cached.
• Register tags.
• Layout fix for 'More' widgets.
• Use getThings() instead of safe_field() to avoid triggering a bug (thanks, makss).