Log message:
py-openpyxl: updated to 2.5.6

2.5.6:
Read-only mode can leave find-handles open when reading dimensions
Set a worksheet directly as active
Internal row counter not adjusted when rows are deleted or inserted

Log message:
py-openpyxl: updated to 2.5.5

2.5.5:

Bugfixes
Files with Mac epoch are read incorrectly
Cannot copy merged cells
Cannot access ws.active_cell

Pull Requests
Introduce read-support for images

Log message:
py-openpyxl: updated to 2.5.4

2.5.4:
Fix: Cannot read files with 3D charts.
Fix: Merged cells take a long time to parse

Minor changes
Improve read support for pivot tables and don't always create a Filters child \ 
for filterColumn objects.
Support folding rows

Log message:
py-openpyxl: remove et_xmlfile from requires.txt

et_xmlfile is only used if lxml isn't and we have dependency on py-lxml
so remove from requires.txt to keep pip happy.

Log message:
py-openpyxl: updated to 2.5.3

2.5.3:
Bugfixes:
* Warning level too aggressive.
* Alignment and protection values not saved for named styles.
* Deleting elements from a legend doesn’t work.
* Index names repeated for every row in dataframe.
* Worksheet protection not being stored.
* Exception raised when reading a tooltip.

Log message:
py-openpyxl: updated to 2.5.2

2.5.2:
Bugfixes
* High memory use when reading text-heavy files.
* Copying merged cells copies references.
* Cannot set comment size.
* Exception when trying to save workbooks with no views.
* Cannot delete last row or column.
* Cannot read Drawings containing embedded images.

Log message:
py-openpyxl: updated to 2.5.1

2.5.1:
Bug fixes.

Log message:
py-openpyxl: updated to 2.5.0

2.5.0:
Minor changes
Correct definition for Connection Shapes.

2.5.0-b2:
Bugfixes
TableStyleInfo has no required attributes
Cannot read files with 3D drawings
Incorrect version check in installer
Cell merging uses transposed parameters
ExtLst missing keyword for PivotFields
Inf causes problems for Excel
Cannot load table styles with custom names

Major Changes
You can now insert and delete rows and columns in worksheets

Minor Changes
pip now handles which Python versions can be used.

2.5.0-b1:
Bugfixes
Explicitly support for multiple cell ranges in conditonal formatting
Non-contiguous cell ranges in validators get merged
Empty data validators create invalid Excel files
Large validation ranges use lots of memory
Unicode in chart axes not handled correctly in Python 2
ScatterCharts have defective axes
Charts with empty numVal elements cannot be read
Scaling options from existing files ignored
Charts with PivotSource cannot be read
Cannot read gradient fills
Quotes in number formats could be treated as datetimes

Log message:
py-openpyxl: add required py-cElementTree dependency

From Fekete, Zoltán in PR 52953.

Log message:
py-openpyxl: updated to 2.4.9

2.4.9 (2017-10-19)
Bugfixes
* 809 Incomplete documentation of copy_worksheet method
* 811 Scoped definedNames not removed when worksheet is deleted
* 824 Raise an exception if a chart is used in multiple sheets
* 842 Non-ASCII table column headings cause an exception in Python 2
* 846 Conditional formats not supported in write-only mode
* 849 Conditional formats with no sqref cause an exception
* 859 Headers that start with a number conflict with font size
* 902 TableStyleElements don’t always have a condtional format
* 908 Read-only mode sometimes returns too many cells
Pull requests
* 179 Cells kept in a set
* 180 Support for Workbook protection
* 182 Read support for page breaks
* 183 Improve documentation of copy_worksheet method
* 198 Fix