Moving the file into correct group

Exporting interface to the Graph class
Some documentation improvements

findEdge extension also for the BpUGraphs
proper handling of loop edges in the UGraph::findUEdge

Minor changes.

Too many files added: sorry.

Missing cplex files: sorry.

Interface to the cplex MIP solver: it is little, a bit sour but it is ours.

Doc fix

The recent progresses on the tutorial due to Mark.

Fix another one external build problem.

Doc improvements

Some corrections.

Some small improvments

size() and subscription operators
compatibility with higher dimensions

Hao-Orlin algorithm

It is based on Attila's work
It is tested on all dimacs files in data directory

It may need more execution control
- possible interruption after each findNewSink

Add missing header sentry

Resolve 'unused variable' warning

Revert an unintentional commit in r2933

xy -> dim2::Point

I forgot to remove the benchmarking part of code

UnionFind
Changing the representation of the union-find
it has the same running time but it takes just 2/3 space
! does not auto insert items /performance/

UnionFindEnum
Changing the interface - more convenient to UnionFind
Does not based on the stl data structures /it could be disadvantage/
=> does not use singular iterator assignment /not stl conform, but always work/
Just new iterator interface

MaxMatching + UnionFindTest
Using new iterator interface instead of the old

Some doc fix

Signaling alterations in BpUGraphs

New map type based on array map for debugging purpose

It checks multiple allocation and deallocation of map values and
some consistency.

todo:
clarification of debugging concepts
assertions - exceptions - debug
revision of attic/debug.h

motto:
testing is at least so important as coding

Bug fix in DescriptorMap
Avoiding the possibility of the memory leak

An easy avoiding of a bug

The functional interfaces are removed.
Better solution could be a reference counted core of the io interfaces

Now it is huge work so just write that:

GraphReader<ListGraph>(std::cin, graph).

Instead of:

graphReader(std::cin, graph).

Bug fix

Using abort() instead of exit(1)

If a program is aborted then the call stack can be analyzed with debugger.
The exit(1) does not provides that.

Disable mip_test when no LP solver is available.

Add missing Tutorial dox files

Tutorial improvements by Mark (mqrelly)

'make doc' is now working also in case of external build.

Bug fix in SmartEdgeSet

+ validity check function

Bug fix
rethrow of exception missing

Proper exception handling in the SmartEdgeSet

Snapshot for SmartUGraph an SmartBpUGraph

Bug fix in ListBpUGraph

Snapshot improvments

Improvment in exception handling
The erase and clear handlers have to be exception safe.
These can throw only one exception which detach the observer
from the notifier

Bug fix in UndirGraphAdaptor

Bug fix in countANodes/countBNodes

Fixed the mip error (mipstatus was incorrect).

Doc improvementst & todos

Update header list

bezier.h is no longer in the repository.

Omit warnings

Omit warning
Using check instead of the LEMON_ASSERT
Using fixed graph

Remove superfluous include headers

- bezier.h went to lemon/bits/
- new graphToEps() option: absolute/relative node size/link width scaling.

BiVariant moved to lemon/bits/variant.h

Doc fix

Doc improvements

Some color constants added (BLACK, WHITE, RED etc)

Resolve unused variable warning.

- Change ColorSet to Palette
- Minor change in graph_orientation demo.

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