2013/11/11 Unlink and modify micrograph

- Added buttons to unlink items in detailed view
- Added a check on the micrograph form to prevent forgetting to upload an image
- Changed the radio buttons in micrograph form to remember the linked items
- Added a "blank" radio button in micrograph form in case of mistake
- Some cleaning of interface
- Advanced search changed to a simple search page
2013/11/15 Resources pages and upload pdf

- Addition of resources pages:
	Notebooks
	Glossary
	Links (the exisiting writer/link.php was renamed to link/items.php to avoid confusion
- Addition of an admin page to edit the glossary
- Addition of upload of pdfs in insert and modify publications and button to download them in display_details.php
- Addition of a global variable $field_title so that, in column/line headers it's an explicit title that is shown, rather than the name of the field exacly as is in the database
- Script to rename the mounts with the three letters code
2013/11/25 Tables, export and chages to access

- Changes in the access: everyone can browse and search without logging in,
 but the object images are only visible when logged in.
- Addition of the Is_public field in the micrograph table:
 Micrographs can be viewed even if not logged in if Is_public==Y
 that is when they are taken by us, not scanned from a publication.
- Addition of the tables tool (advanced search and export in the nav bar)
- Addition of the export tool to Excel. Required the import of the PHPExcel library.
- Addition of the notebooks folder to gitignore.
- Transfer of parts of serch_results.php to functions (search_functions.php)
 for reuse in the tables making tool.
- Addition of a check on the search, so that an alert is displayed if
 the user tries to submit an empty search.