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- break long lines
- use common format for error messages

- scanning for groups and computation of their depth re-implemented

- "typeset -p" is able to handle multiple variables!

- this environment variable was used in the past in modulefiles to load
  the required Tcl code for Pmodules

Resolve "export PMODULES_ENV after content changes only"

Closes #40

See merge request !11

Merge branch '39-with-option-in-sub-command-search-should-accept-space-comma-or-colon-separated-list' into 'master'

Resolve "--with option in sub-command search should accept space, comma or colon separated list"

Closes #39

See merge request !10

Resolve "implement generic print help function"

Closes #38

See merge request !9

- in sub-command 'load': print conflict message not just load failed
- in sub-command 'search': equal sign can now be used for options
  '--with' and '--release'
- sub-command options can now be specified on the LHS of the sub-command

Resolve "switch command does not work"

Closes #37

See merge request !8

- sub-command 'swap' is now implemented via unload/load
- tmpfile variable in subcommand_load() cannot be read-only any more

- unused procedures removed
- implementation of the output of the .info file moved to modulecmd.bash
- swap is now implemented in modulecmd.bash as unload followed by a load

- all arguments are passed to modulemcd without being parsed/checked

Resolve "sub-command unload must eval output from modulecmd.bin"

Closes #36

See merge request !7

Not all cached data has been updated while unloading a module amangst
other the list of used groups (UsedGroups)

Resolve "PATH must be initialized in profile.SHELL"

Closes #35

See merge request !6

- prepend Pmodules bin directory to PATH
- export MANPATH

- use export instead of eval

Resolve "initialisation cleanup"

Closes #34

See merge request !4

- libmodules.tcl: rename implementation to variant, fixes in file name joining
- modulecmd.bash.in: get available groups from 'GroupDepths'. There is no
  need to use a dedicated variable for housekeeping available groups.

- PMODULES_USED_GROUPS renamed to UsedGroups, now saved to PMODULES_ENV
- fixes in exporting variables

- Pmodules/bash: contains now only the 'module()' function, some sanity
  checks and initialization of bash completion plus unsetting some unused
  variables.
- Pmodules/libstd.bash: bug fixed in std::append_path if path includes spaces
- Pmodules/modulecmd.bash.in: (re-)initialize if 'PMODULES_ENV' is empty or
  unset

Merge branch '33-in-modbuild-arguments-must-be-parsed-before-souring-the-configuration-file' into 'master'

Resolve "in modbuild arguments must be parsed before souring the configuration file"

Closes #33

See merge request !3