Implemented download.php to offer SIP protected downloads for single files (any filetype) as well as concatenated PDF files and converted HTML pages.
download.php: API Interface
DownloadException.php: New exception class for downloads - might be extended for better error handling.
OnArray.php: new function getArrayItemKeyNameStartWith() to filter for specific elements in an array. New function arrayEscapeshellarg() to escape args
Download.php: Main class.
Link.php, Report.php: implemented new link type 'd' (=download)

Link.php: add some doc.

Link.php, Report.php: New '_link' token 'x'. '_paged' and '_Paged' are rendered via Link() class, Link() class now supports delete links.

Link.php: Check paged / Paged that the parameter r, table and form are given in the right combination.

Link.php, Report.php, AbstractBuildForm.php, BuildFormBootstrap.php, Constants.php: on various points replaced native string against API_DIR and newly API_DELETE_PHP.

#1255: Remove whole 'Log', 'Utils', 'Db' class - completely useless and not used much. As side effect, #1255, has been solved.
report/Db.php|Log.php|Utils.php: deleted - not necessary anymore
Link.php, Report.php: Remove references to deleted classes. Adjusted one call to db->sql().

delete.php, Delete.php: reformat
Link.php: typo

AbstractBuildForm.php: Columns with a name starting with '_... ' has not been surpressed. Fixed. Icons path adjusted.

Link.php, AbstractBuildForm.php, BuildFormBootstrap.php, Database.php: introduced constants for glyph. Code rearranged
testtabbles.sql: extended to test Delete with filenames

Link.php: #2037 - Bei _link mit Grafik wird das Argument o: (tooltip) ignoriert - FIXED. 'title' are rendered now in '<a>' and '<img>'.

Link.php: make error messsage more user friendly
Report.php: introduced new constants DEFAULT_ICON, DEFAULT_QUESTION

Link.php: added parameter to JS alert code

OnArray.php: new explodeWithoutEscaped()
Link.php: new doQuestion()
Report.php: Link class will be initialized during __construct().

Unittests fuer _page und _Page.
Link.php: add checkEmptyValue(), checkValue() - code becomes cleaner.
Report.php: diverse Stellen empty() entfernt und durch isset() && ==='' ersetzt. empty() nimmt auch '0' als leeren Wert.

Link.php: fixed bug that '0' as parameter for a token was equal to 'take default'.
Report.php: fixed two bugs with 'uninitialized variable'
Sip.php: index.php replaced by a constant.

Link.php: code refactored. New implementation should be position independent for the token string. Also some logic changed to be much cleaner. New: NAME_QUESTION_* (not implemented now), FINAL_*, $tokenMapping[], $tokenGiven[]. Removed: varsDefault - directly set in initVars().

UsersManual/index.rst: cleanup of _link, _pagex, _PageX description.
Link.php, Report.php: Hard coded token names replaced by constants. Name of token 'h' (HASH) changed to 's' (SIP).
Report.php: Removed code for column '_F'.

Link.php: simplyfied Tooltip creation - might be broken now for non URL - there are no unit  tests for these situation. New: if no tooltip is given, and a link of type [Pp]age? - take the glyph name as tooltip. Render all links, which use a hash and with showDebugInfo='yes' , with the decoded sip as tooltip.
Sip.php: queryStringToSip() extend to return complete paramter array.

Support.php: rewrote appendTypo3ParameterToArray() to use Typo3 Store instead of _GET Parameter. Moved randomAlphaNum() to Support.
Link.php: rewrote handling of ToolTip. Renamed doHtmlUrl() to doAnchor().
Utils.php: moved randomAlphaNum() to Support.
Store.php: rewrote fillStoreClient() to be more compatible with phpUnit-test environment. Removed randomAlphaNum() - duplicate in Support.
AnbstractBuildForm.php: rewrote deriveNewRecordUrlFromExistingSip() to use generic Support::appendTypo3ParameterToArray()
Coding.md: Notes for debuggging.

Link.php: Button 'edit/new/show/delete/info' do not assign class internal/external.
Store.php, Constants.php: TYPO3_PAGE_LANGUAGE implemented. TYPO3_PAGE_ID, TYPO3_PAGE_TYPE renamed.

Link.php: Whole class refactored. Errors now reported via UserReportExtension. Access to array 'vars[]' now unified via constants. Number of build*() Functions reduced. Handling of default values simplified.

UserReportException.php: Added field SYSTEM_REPORT_COLUMN_NAME to output. Array members renamed to SYSTEM_*.
Various files adjusted to inlcude renamed file `UserFormException.php`.
Link.php: Mamut switch() in parseItem() refactored to use $callTable.
Report.php: refactoring started to use UserReportException() instead of SyntaxReportException. Startet removing all fr_error usages.

Link.php: refactoring for implementing unittests

Link.php, Report.php: starting with cleaning up class Link. Constructor purified, enhanced error reporting might be later implemented again.
AbstractBuildForm.php, BuildFormBootsrrap.php, BuildFormTable.php: renamed getAttribute() to doAttribute()
LinkTest.php: starting creation.

new version number 0.1.1
changed author to Carsten Rose on various places

Link: implemented creation of SIP for links. Remove the old 'hash' implementation.
Constants:

Link: replaced TYPO3_CONF_VARS by STORE_SYSTEM
Sip, Store: PhpDoc
AbstractBuildForm, BuildFormBootstrap, Constants: implemented constant SYSTEM_SHOW_DEBUG_INFO
Database: rewrote errormessage

Link: added class global variable $sip, initialized during construct.
Report: call to Link class extended with SIP Parameter.
Variables: removed unused comments
QuickFormQuery: provide the SIP parameter