Merge pull request #18 from moose/topic/strict-num-type

Topic/strict num type
also smoke on 5.18.x, 5.19.x
add a (non-fatal, for now) test to confirm all prereqs are present
removed trailing whitespace
link to MooseX::Types::LaxNum
fixed all use of tabs in non-C code
bump version for release
changelog for Moose-2.0803
make this entry match the format of the others
include more metadata
bump version for next release

(and pretend the last release never happened)
now releasing from stable/2.10
changelog for Moose-2.1000
2.1000 was also a mistake - that version is reserved for trial releases...
include -TRIAL in version in Changes
changelog for Moose-2.1001
bump version *again* for -TRIAL
changelog for Moose-2.1002-TRIAL
disable 5.17 testing; temporarily disable 5.18/19 until it is provisioned
tag the commit that contains our changelog release, not the one before it