Add fractional matching algorithms (#314)

General improvements in weighted matching algorithms (#314)

- Fix include guard
- Uniform handling of MATCHED and UNMATCHED blossoms
- Prefer operations which decrease the number of trees
- Fix improper use of '/='

The solved problems did not cause wrong solution.

Merge bugfix #356 to branch 1.1

Fix multiple execution bug in weighted matchings (#356)

This chgset also redoes the fix of [28c7ad6f8d91] and its backpont to 1.1,
[268a052c3043].

Add doc/references.dox to .hgignore

Replace figure at matching doc #348

The original bibartite_matching.eps is kept for future use.

Rename min mean cycle classes and their members (#179)
with respect to the possible introduction of min ratio
cycle algorithms in the future.

The renamed classes:
- Karp --> KarpMmc
- HartmannOrlin --> HartmannOrlinMmc
- Howard --> HowardMmc

The renamed members:
- cycleLength() --> cycleCost()
- cycleArcNum() --> cycleSize()
- findMinMean() --> findCycleMean()
- Value --> Cost
- LargeValue --> LargeCost
- SetLargeValue --> SetLargeCost

Fix gcc 3.3 compilation error (#354)

gcc 3.3 requires that a class has a default constructor if it has
template named parameters. (That constructor can be protected.)

LEMON 1.1.2 released (86a880ba752d tagged as r1.1.2)

Update NEWS file

LEMON 1.0.5 released (50b6b66daafd tagged as r1.0.5)

Update NEWS file

Clarify type names in NetworkSimplex (#353)

This patch clarifies the misleading effects of the renamings
in [f3bc4e9b5f3a].

Merge #306

Add tolerance() functions for HaoOrlin (#306)

Merge #301

Also test fullInit() in suurballe_test (#181, #323)

Add traits class + named parameters to Suurballe (#323)

The following types can be modified using named parameters:
- FlowMap
- PotentialMap
- Path
- Heap + HeapCrossRef

Merge #181, #323

Rename heap structures (#301)

- KaryHeap --> DHeap
- FouraryHeap --> QuadHeap
- BinomHeap --> BinomialHeap

Merge bugfixes #323 to branch 1.1

Add a fullInit() function to Suurballe (#181, #323)
to provide faster handling of multiple targets.
A start() function is also added, just for the sake of
convenience.

Rework and improve Suurballe (#323)

- Improve the implementation: use a specific, faster variant of
residual Dijkstra for the first search.
- Some reorganizatiopn to make the code simpler.
- Small doc improvements.

Remove unnecessary integer requirement in Suurballe (#323)

Bug fix in Suurballe (#323)

Configurable glpk prefix in ./scripts/bootstrap.sh and ...
unneeded solver backends are explicitely switched off with --without-*

Merge #342

Improve README and mainpage.dox (#342)

Merge #347

Use 'long long' flow cost in dimacs-solver.cc (#347)

Merge

Support tolerance technique for BellmanFord (#51)

A new operation traits class BellmanFordToleranceOperationTraits
is introduced, which uses the tolerance technique in its less()
function. This class can be used with the SetOperationTraits
named template parameter.

Merge #332

ArgParser can throw exception instead of exit(1) (#332)

Better return type for cycleLength() functions (#179)
in the min mean cycle algorithms.

The original Value type is used instead of the LargeValue type,
which is introduced for internal computations.

Merge 4 backouts (#50, #312)

Back out 4 changesets (#50, #312)
- 532697c9fa53
- bb8c4cd57900
- 9f529abcaebf
- 703ebf476a1d

Merge #340

New heuristics for MCF algorithms (#340)
and some implementation improvements.

- A useful heuristic is added to NetworkSimplex to make the
initial pivots faster.
- A powerful global update heuristic is added to CostScaling
and the implementation is reworked with various improvements.
- Better relabeling in CostScaling to improve numerical stability
and make the code faster.
- A small improvement is made in CapacityScaling for better
delta computation.
- Add notes to the classes about the usage of vector<char> instead
of vector<bool> for efficiency reasons.

Merge bugfix #336

Merge bugfix #336 to branch 1.1

Merge bugfix #336 to branch 1.0

Fix the date field comment of graphToEps() output (#336)

Modify the header of scripts/bib2dox.py (#184)

Merge

Fix LpBase::addRow(Constr) (#334)

Merge bugfix #337

Merge bugfix #337 to branch 1.1

Use void* like LPX object (#337)

Merge

Handle graph changes in the MCF algorithms (#327)

The reset() functions are renamed to resetParams() and the new reset()
functions handle the graph chnages, as well.

Merge

Doc improvements for planarity related tools (#62)

Port planar image from SVN -r3524 (#62)

Fix clear() function in ExtendFindEnum (#335), backport of [28c7ad6f8d91]

Fix clear() function in ExtendFindEnum (#335), backport of [28c7ad6f8d91]

Merge

Add doc for the traits class parameters (#315)

Add more information on Makefile variables (#316)

Add a warning about huge capacities in Preflow (#319)

Merge #180 and a bugfix in #51

Small bug fixes (#180)

Rename a private type in MCF classes (#180)

The new MCF algorithms define a private map type VectorMap,
which could be misleading, since there is an other VectorMap
defined in lemon/bits/vector_map.h. Thus the new type is
is renamed to StaticVectorMap.

Adds tests for the new MCF algorithms (#180)