Add get() to htcondor.param if missing

Old versions of condor-python do not have htcondor.param.get(); monkey-patch
htcondor.param if that is the case. This makes the code less repetitive than
using try/except blocks.

Also, "'foo' in htcondor.param" doesn't work in old versions of condor-python
so replace uses of that with htcondor.param.get()
Add last generated time to 02-ce-auth-generated.conf as an attribute (not just comment text)

This allows monitoring systems to keep track of the last generated time.
Add check for C++11 support - necessary for RHEL7.
Small fixes for building on RHEL7.
Add JobRouter tool aimed at HTCondor CE
Merge pull request #35 from brianhlin/condor_ce_job_router_tool

Add JobRouter tool aimed at HTCondor CE
Add LastCEConfigGenerateTime to COLLECTOR_ATTRS to include it in the collector classad
Merge pull request #34 from matyasselmeci/master

Add get() to htcondor.param if missing
Merge pull request #32 from brianhlin/master

Add default_maxWallTime (SOFTWARE-1596)
Add 01-ce-info-services.conf which sets CONDOR_VIEW_CLASSAD_TYPES
Merge pull request #36 from matyasselmeci/s1615-condor-view-host

Add 01-ce-info-services.conf which sets CONDOR_VIEW_CLASSAD_TYPES
Rename and move the info-services defaults to a different directory.