add: initial stuff for apply

from master
fix: multi-index for bigintmat
Fix -DNDEBUG -DOM_DEBUG as a flag
Exclude 'Short/parallel_s.tst' from testing by default due to leftover Singular instaces...
For profiling: use google proftools (optionally)
Misc changes to BS and others

fix: GMP-checking will looks at CPATH
add: remarks due to C. Fieker
TODO: passing wrong (?) homogenizing weights to kStd
further Syz/Resolutions:

chg: sorting: "ds" ->> "c,ds" (since reversed order!)
chg: SSComputeLeadingSyzygyTerms moved into the dynamic module (ComputeLeadingSyzygyTerms)!

TODO: add id_Sort wrt "c,ds" to ComputeLeadingSyzygyTerms???
sorting for Syz/Res project:

add: inplace sorting 'Sort_c_ds'
add: MySort to schreyer.lib for testing 'Sort_c_ds'
chg: ComputeLeadingSyzygyTerms now sorts the output
fix: MySort for non-monomial modules
added GetAMPos helper function to syzextra: TODO: remove?!
moved 'Compute2LeadingSyzygyTerms' into the dyn.mod.

TODO/TEST/...?: interred & tailred???!
options are attached as attributes to SSinit
new testing procedure testALLA: several tests in many setups!
SSCompute2LeadingSyzygyTerms should use Compute2LeadingSyzygyTerms be default!
added HybridNF && related design changes!

add: introduced: SSFindReducer for HybridNF
chg: use SSFindReducer for SSReduceTerm
chg/fix: SSReduceTerm should not produce silly syzygies: m*gen(k) - m*gen(k) (it needs to know the 1st leading syzygy term!)
Minor chages + defaults
Fix qsort usage due to MAC OS X
fixed (non-standard) qsort_r (_GNU_SOURCE?) usage
implemented FindReducer in syzextra

chg: (SS)FindReducer don't need T!
add: SSFindReducer uses FindReducer by default and can check its result!
fixing a Sort problem for 0-input (wrong output rank of 0?)