move ajax.php to action.php. Some code clean up
add conflict and lock checks, improved saving
code layouting
Refactoring syntax.php simplifying javascript
Refactor the searchpattern part of syntax.php
Some significant changes:
 * Now in list of searchpattern index numbers are used (the date stored at todotag protects against conflicting edits)
 * The searchpattern list request itself no caching
reorder and reformat two methods
Reformat code of syntax.php to DokuWiki code style
Remove hidden field with todo title
Sofar i have seen this has no added value anymore since in searchpattern indexes are also applied.
make strnpos() private, and remove unused todostr2regexp()
action.php replaces ajax.php: ajax.php removed
update plugin update date
Refactor javascript, modify todoitem only when it is saved correctly
Refactor javasript, use ToDoPlugin namespace
rename path to pageid
rename path everywhere
Update messages, make them translatable
Save message translatable
Merge pull request #3 from Klap-in/somechanges

Refactoring ToDo plugin code