From now on, all English strings use the new syntax. They are not
eval()'ed any more and the only valid placeholders are {$a} and
{$a->foobar}. No extra quotes escaping, dollar sign escaping and putting
double percent signs.
The modified files were exported from AMOS database repository in the
new syntax and were re-ordered by stringid. Standard GNU/GPL and PHPdoc
blocks are added. Where there was no copyright note so far, I added the
default one with Martin Dougiamas as the copyright holder.
Live long and prosper.
* Rename filter base class from filter_base to moodle_text_filter
* Remove unnecessary explicit constructors in moodle_text_filter
subclasses
* New filter_manager class, rather than static methods in filter_base
* Move some logic out of weblib, and into filter_manager
* Count filtering ops when $CFG->perfdebug on, via
performance_measuring_filter_manager
* Kill unused filter_string function. Petr said it should have been
private to weblib