added target file area parameters to file methods that chould have 2 areas

Signed-off-by: Ian Turgeon <iturgeon@gmail.com>
added  copy arg default and added error checking to static::instance calls

Signed-off-by: Ian Turgeon <iturgeon@gmail.com>
fixed typo in the pagination default config for bootstrap
reverted fixes for File::instance()

Signed-off-by: Ian Turgeon <iturgeon@gmail.com>
Merge pull request #1238 from iturgeon/1.5/develop

File move & copy methods require very loose areas
do not display hidden fields in a tabular form
added limited dot-notation support for Session::set_flash()
fixed not removing required from tabular rows in fieldset
fixed HTTP status not set on unknown formats (like html)
Cache didn't delete all files in subdirectory.
fixing tabular form generating an incorrect number of blank rows
fixed fieldset delete_row() only testing the first rule