v0.6-1  (2019-03-26)

  o various documentation updates

  o the "Tutorial" PDF has been removed, but
    its content may be found at
    https://gitlab.com/enricoschumann/tsdb/README.org and
    https://github.com/enricoschumann/tsdb/README.org

v0.6-0  (2019-03-21)

  o fixed: 'write_ts_table' with option 'add' would
    not rewrite (i.e. delete) data before 1 Jan 1970

  o write_ts_table: new argument 'replace.file'

  o write_ts_table: scientific notation is no longer
    suppressed, i.e. numbers may now be written as
    e.g. 1e10

  o read_ts_tables: new arguments 'read.fn' and
    'frequency'

  o read_ts_tables: 'return.class' may also be
    'ts_table'

  o function 'ttime' is now exported

  o there are public repositories at
    https://github.com/enricoschumann/tsdb and
    https://gitlab.com/enricoschumann/tsdb

v0.5-0  (2017-10-24)

  o fixed: 'write_ts_table' does now also write
    empty files

  o write_ts_table: first argument has been renamed 'ts'

  o new function 'file_info'

  o read_ts_tables: rename argument 'column.name' to
    'column.names' (plural)

  o new ts_table method for as.matrix

v0.4-1  (2017-02-06)

  o 'read_ts_tables' has a new argument 'column.name',
    which specifies the format of column names in results

  o there is a public repository at
    https://gitlab.com/enricoschumann/tsdb

v0.3-0  (2016-12-10)

  o 'write_ts_table' has a new argument 'add': If TRUE,
    only new data are added to a file, and existing
    data are kept.

v0.2-1  (2016-12-09)

  o A Tutorial is now installed with the package.
    It can be accessed via

      browseURL(system.file("Tutorial/README.html", package = "tsdb"))
      browseURL(system.file("Tutorial/README.pdf", package = "tsdb"))

v0.2-0  (2016-12-05)

  o 'read_ts_tables' can now read several columns
    from files.

  o New method 'as.zoo.ts_table' added.

  o Tutorial added (see file README.org).

v0.1-0  (2016-11-24)

  o Initial version of package.
