Alexander Ziegler / gammalib

Removed size() method.

Renamed filename() method to url().
Renamed fullname() method to operator().

It is still convenient to control the event disposal from the observation class, although the actual event disposal is now handled by the event list class.

…t GCTAEventList level.

… specifying the events and Good Time Intervals FITS extension names. The standard write() method will call this new write() method using the events extension name extracted from the file name and the GTI extension name set by the m_gti_extname member. The GCTAObservation::write() method was also extended and now has two optional arguments that allow specifying the events and Good Time Interval FITS extension names. These are simply forwared to the new GCTAEventList::write(). The GCTAObservation::save() method has now a special logic that decodes any optionally specified extension in the format [EVENTS;GTI] into an events and a Good Time Intervals extension name.

These changes satisfy the feature request #1598.

…t the name of the Good Time Intervals FITS extension. The data sub-space keyword is now also adjusted to the specified GTI extension name when the data are written to disk. This satisfies the feature request #1598.

…a sub-space keywords.

…tion to load GTIs separately. GFilename now supports selection expression strings

Conflicts:
	inst/cta/src/GCTAObservation.cpp

…utes from exposure cube when setting the response.

…no ontime or livetime).

…ace. GCTAResponseCube now holds GCTACubeBackground as protected member

… "xml_has_par" function and made reading of information in observation definition file optional (so that for example energies or ROI can be missing).

… and enable pointing information writing in GCTAObservation::write(GXmlElement).

…sponse function in the XML file.

Corrects bug #1361.

…servation definition XML files

…method to GCTAObservation.

…ut loading the entire event file.

The roi() method returns the Region of Interest of an event list even if no event list is actually loaded in the CTA observation.

The events are now only loaded when needed, reducing the memory usage for CTA data. The method dispose_events() has been added which explicitely allows the disposal of the events.