errno is already used by system headers; leads to conflicts

Discard SVN keywords and subroutines which were used to report SVN Id at the
terminal:
- subroutine foucmd_revision
- subroutine foufil_revision
- subroutine fou_revision

So far these subroutines were only called by subroutine foucmd_help
within libfourier itself.

The parameters for the transformation into Fourier domain (selecting the
number of samples to be used) was not defined in detail.

Solve two issues in the MiniSEED module of libdatrwxx:
- do not complain about inconsistent frame count, if number of frames is just
  guessed (issue21)
- read past unused data in each MiniSEED record (issue23)

This way libdatrwxx and all tools based in the library (like any2matlab)
should be prepared to properly read recent EarthDataLogger (EDL) files.

After having made clear that incompletely filled MiniSEED records are covered
by the format specification, there is no reason to complain, if estimated
number of frames (in cases where blockette 1001 is not present in the data)
does not match actual number of frames. By deactivating this consistency check
in the case where data files do not specify number of frames, we implicitely
solve issue21.

Issue21: When reading a MiniSEED data file with incompletely filled records,
the user was confronted with a vast amount of (insignificant) warning
messages.

This reverts commit ecb2ebce.

Conflicts:
	src/libs/libdatrwxx/mseed/imseedstream.cc

Subformat "silent" is not required, since incompletely filled MiniSEED records
are considered to be in compliance with the data format specification.

This reverts commit 33845dc7.

Conflicts:
	src/libs/libdatrwxx/mseed/mseedread_mseedrecord_read.cc

Note 6 in the description of the Data Externsion Blockette [1001] specifies:
  Frame count is the number of 64 byte compressed data frames in the 4K record
  (maximum of 63). Note that the user may specify fewer than the maximum
  allowable frames in a 4K record to reduce latency

see SEED V2.4 Manual, chapter 8, page 124

A record not necessatily must be filled completely by time series data.
This also applies to records without blockette 1001. The reading program must
be prepared to skip unused bytes in the record. If it does not, it will fail
to find the next Fixed Section of Data Header (48 bytes) as defined on page
108 in chapter 8 of SEED V2.4 Manual.

This fix:
Make sure that the entire record is read before processing the next one.

Apparently this function is called at no place within the library. There might
be good reasons, why this function is of no practical use. This should be
checked and the function should be considered to be discarded.

- add references to existing detailed descriptions
- add description of MiniSEEDblock

Provide separate compilation units for member functions of MiniSEEDRecord

Provide notes for the class description as well as notes in the related page.

Make quickfix available on branch master for users of any2matlab

Selecting the format modifier "silent" for reading mseed format, lets the
program skip all consitency checks and warning which are non-fatal.
This is a quickfix for any2matlab. With large files, the warnings regarding
inconsistent numbers of frame when reading pri-files from EarthData loggers
where so frequent, that reasonable reading within Matlab was not possible.
With this quickfix, the code can be forced to simply ignore inconsistencies.

In Seitosh package creation is no longer supported.

Provide a new subformat flag "silent" and pass the setting to the actual
reading function. If flag is set, do not output non-fatal errors.