update dependencies and detail

Author: amitguptagwl

CHANGELOG.md

@@ -1,5 +1,7 @@
+3.12.20 / 2019-08-16
+  * Revert:  Fix #167: '>' in attribute value as it is causing high performance degrade.
 3.12.19 / 2019-07-28
-  * Fix js to xml parser should work for date values. (broken: `tagValueProcessor` will receive the original value instead of string always)
+  * Fix js to xml parser should work for date values. (broken: `tagValueProcessor` will receive the original value instead of string always) (breaking change)
 3.12.18 / 2019-07-27
   * remove configstore dependency
 3.12.17 / 2019-07-14

README.md

@@ -269,6 +269,9 @@ With the correct options, you can get the almost original XML without losing any
 
 </details>
 
+### Limitations
+ Currently FXP fails to parse XML with attributes has ">" in the value. This problem is left open as change in regex for its fix is degrading the performance. And the parser become very slow in case of long attrbute names.
+
 ### Worth to mention
 
 - **[BigBit standard)](https://github.com/amitguptagwl/bigbit)** : A standard to reprent any number in the universe in comparitively less space and without precision loss. A standard to save space to represent any text string in comparision of UTF encoding.