v3.3.3b
fixes #623
fixes #818
fixes  #818

handle errors
fixes #622
oops
new filters

`pagetitle`
'pageslug'
`metat'

get_page_meta_title() new function for themes to use for header <title>,
would be nice if it was bundled into getheader, less for themes to do.
added canonical filter
changed metat to headtitle

still up for other optionname debates
fixes #643 42041931

https://github.com/GetSimpleCMS/GetSimpleCMS/issues/643#issuecomment-42041931
fixes #399 sorting

no clue how this happened
fixes #546 new component mode
fixes #399 line-height
fixes #399 mode not set if direct access

https://github.com/GetSimpleCMS/GetSimpleCMS/issues/399#issuecomment-33280988
fixes #399
global ctrl+s save hotkey

fixes #399 saving when not focuses on a codeeditor
also allows global ctrl_s save submission on all pages
fixes #831 canonical changes

bad empty check, renamed to `linkcanonical`
annotate  plugin_functions
fixes #833 check in jQuery Migrate plugin
fixes #833

made registration in  global scope so it happens as soon as plugin in
included