(doc) Clarify a couple of comments under lib/puppet/

- 'should not be used in preference to' as 'should be avoided in favor of'
- '25K to 300 symbols to strings' as '25K symbols vs. 300 strings'
(maint) Various fixes (whitespace, etc)
(maint) Spelling fixes for code comments

'acutal' to 'actual'
'allowal' to 'allowable'
'cahe' to 'cache'
'corrosponding' to 'corresponding'
'dafault' to 'default'
'defauls' to 'defaults'
'defualts' to 'defaults'
'follwing' to 'following'
'manageing' to 'managing'
'managhome' to 'managehome'
'matchin' to 'matching'
'pupet' to 'puppet'
'repositry' to 'repository'
'terminii' to 'termini' (per Oxford, 'termini' or 'terminuses')
'ths' to 'this'
(maint) Typo fixes for code comments
Merge pull request #1801 from floatingatoll/patch-3

various documentation fixes
(maint) Remove rspec requires from the Rakefile

In the Rakefile, we no longer use Rspec methods or classes, but instead shell
out to rspec, so requiring rspec serves no purpose in the rakefile. The require
was also incorrectly placed within an unrelated begin/rescue block, which
caused deprecated rake libraries to be loaded when rspec was not present. This
commit removes it from the Rakefile.
Merge pull request #1814 from haus/maint/stable/move_rspec_requires

Remove rspec requires from Rakefile
Docs: Slight tweak to description of the alias metaparameter

- Delete the link to the old language guide; there's no "more information" in there.
- Explain effects in practical terms instead of expecting the reader to know the
  diff between the parser and the "library."
- Adjust quoting.
- Fix technically-correct-but-not-what-we-were-trying-to-show syntax.
Merge pull request #1822 from nfagerlund/alias_metaparameter

Docs: Slight tweak to description of the alias metaparameter
Merge remote-tracking branch 'upstream/stable'

* upstream/stable:
  Docs: Slight tweak to description of the alias metaparameter
  (maint) Remove rspec requires from the Rakefile
  (maint) Typo fixes for code comments
  (maint) Spelling fixes for code comments
  (maint) Various fixes (whitespace, etc)
  (doc) Clarify a couple of comments under lib/puppet/

Conflicts:
	lib/puppet/module_tool/skeleton/templates/generator/manifests/init.pp.erb