CRM-13927 - Counties: fix county notice and remove US county SQL file

----------------------------------------
* CRM-13927: County notice gone missing
  https://issues.civicrm.org/jira/browse/CRM-13927
CRM-13927 - Counties: don't need to find path to county file

----------------------------------------
* CRM-13927: County notice gone missing
  https://issues.civicrm.org/jira/browse/CRM-13927
CRM-13927 - Counties: link to local extensions directory in message

----------------------------------------
* CRM-13927: County notice gone missing
  https://issues.civicrm.org/jira/browse/CRM-13927
CRM-14319 addition to scheduled reminders not being sent
CRM-14319 additional test to check how limit to works - just for Yashi
Code cleanup
-- made financial account as required, CRM-14380

----------------------------------------
* CRM-14380: Adding a new Payment Instrument does not require account, results in unbalanced transactions
  https://issues.civicrm.org/jira/browse/CRM-14380
Code cleanup. Improved readability with better variable names. Removed unused variables. Shouldn't actually change anything about how Civi works.
Replaced hardcoded contribution status ID with a pseudoconstant lookup.
Variable $className was undefined; replaced it with a lookup for the class name of the current form.
Fixed misnamed variable. Should result in more useful error messages.
Whitespace edit for code readability.
Added some code documentation to help with debugging.
CRM-14084 fixes - Search by participant role does not work in Search Builder

https://issues.civicrm.org/jira/browse/CRM-14084
Merge pull request #3125 from kurund/CRM-14084

CRM-14084 fixes - Search by participant role does not work in Search Bui...
test fix - change var to non-static
limit option for confirmation only for free events
Merge pull request #3128 from yashodha/CRM-11182.4.5

limit option for confirmation only for free events
Merge pull request #3107 from eileenmcnaughton/tests

CRM-14319 addition to scheduled reminders not being sent
Merge pull request #3127 from GinkgoFJG/CRM-14354

Misc code clean-up around membership/contribution forms