Adding some charsets

Newer versions of MySQL have more UTF-8 collations in addition to the
new utf8_mb4 charset/collation.

For some additional information about utf8_mb4, please refer to
http://dev.mysql.com/doc/refman/5.5/en/charset-unicode-utf8mb4.html
updating jquery mobile to 1.3.1
files toggle in admin, not yet as I would want it
setting locale to default, fixed issue 1583, thanks ozancag
normalized behaviour in A() handler, fixed anonymous function block.
first step to a nicer code style of admin
Merge pull request #124 from oliveiraev/fix-pymysql-charset

Adding some charsets
Merge branch 'master' of github.com:web2py/web2py
Merge pull request #131 from swayf/feature/multiple_submit_buttons_in_grid

allows add multiple submit buttons in "selectable" mode in SQLFORM.grid ...
Merge branch 'master' of github.com:web2py/web2py
Merge pull request #132 from mpranjic/masterfix

updating jquery mobile to 1.3.1
Merge branch 'master' of github.com:web2py/web2py
Merge pull request #133 from niphlod/feature/js_inline

normalized behaviour in A() handler, fixed anonymous function block.
Merge branch 'master' of github.com:web2py/web2py
Merge pull request #134 from niphlod/issue/admin_refactor

first step to a nicer code style of admin
Merge branch 'master' of github.com:web2py/web2py
moved the locals restoring logic, thanks ozancag
reduced memory footprint by conditionally loading Tk
customization of upload package input in admin interface
fixed issue topic/web2py/LGxJR85pG88, thanks Oliver