Fix bugs

• Fixed issue that sometimes caused custom keywords to not be counted properly
• Fixed issue that sometimes incorrectly counted custom keywords as being filtered out
• Improved the Case Variation Asterisks setting to work for custom keywords
• Minor improvements to counting filters
• A few minor UI improvements

• Added a footnote to counted keywords when Case Variation Asterisks are enabled
• Minor improvements to counting filters
• Various minor UI improvements

• Made default setting for counted keywords to have the same letter case that they have in the input text if there are no variations
• Added setting "Lowercase All Results" for lowercasing all counted keywords regardless of their letter case in the input text
• Added setting "Case Variation Asterisks" which adds asterisks next to counted keywords that have letter case variations
• Added filter setting for common transition words (also, although, because, besides, consequently, etc.)
• Added filter setting to avoid counting single letters as words (except for A, I, O)
• Fixed sorting issue for counted keywords when Case Sensitive Counting was enabled
• Various minor UI and verbiage improvements

• Added filter setting "Only Significant Words" which is a quick way to apply all word filters
• Added filter setting for helping verbs (am, are, be, can, could, did, do, etc.)
• Separated regular keyword stats from custom keyword stats
• Regular keyword stats and custom keyword stats are only shown when appropriate, depending on settings
• Various minor UI improvements