rcldf development version

v1.6.0:

• add mapping tools
• add subset_cldf to subset CLDF datasets
• add load_dplace helper function.
• add schema function to display schema.
• add datasets and load_dataset() functionality

v1.5.1:

• code optimisation. CLDF loading is now about 40% faster.
• misc changes for CRAN compliance.

v1.5.0:

• better cache names.
• add load_concepticon and load_clts to match load_glottolog.
• make column name clash handling better in as.cldf.wide.
• documented usage in tutorial vignette.

v1.4.1:

• refactored caching.
• removed clean_cache command until I can think through the security on this.

v1.4.0:

• misc tweaks and changes for CRAN.
• print.cldf now shows citation.
• add load_glottolog convenience function.

v1.3.1:

• fixed usage documentation of load_bib.

v1.3.0:

• implemented download cache system.
• make resolve_path more reliable.
• added get_details utility.
• source information is no longer loaded by default, as this is error prone and slow. To retrieve source information either explicitly pass the load_bib=TRUE flag to the cldf constructor or run o <- load_bib(o).
• removed citation() function as it namespace clashes with utils::citation, and is now added to the CLDF object as o$citation.
• added more documentation.

v1.2.0:

• made url handling better.
• better handling of datatypes for CLDF.
• fix crash when a table does not exist despite the metadata saying it does.
• documented debugging details and added more debugging information.
• made nullify more robust.

v1.1.0:

• fixed zip loading.

v1.0.0:

• first release.